How to Fix Error 421

Windows photo viewer was a popular photo viewing application integrated into Windows 7, 8, and 8.1 but in Windows 10 it has been replaced with photos, Microsoft's new application aimed at photo viewing on your desktop. Now if any one of you wonders why should be bringing the old application back to Windows 10 since we have an alternative one, the answer would be resources and speed. The old photo viewer application is lightweight, fast, and reliable, opening the same photo in both photo viewer and in new photos shows us that Microsofts new viewer application takes even three times more RAM, and it's visibly slower in loading times for pictures. Since I am a person who prefers speed and functionality over fancy looks I would be very glad to have the option to bring back a photo viewer. If you have by any chance Windows 10 as an upgrade, bringing back photo viewer is easy as 1,2,3. you just need to open settings and go to default apps, under photo viewer you should see your current default viewing application, probably photos, click on it to see options and choose photo viewer and exit the Settings menu, and you're done. Sadly if Windows 10 has been installed clean on the system and not as upgrade things are a little bit more complicated but do not worry, stay with us, keep reading and you will get there.

Activating photo viewer

How technically photo viewer is still in the system but not used we will have to make it available again and this we will do by adding some lines in the Windows registry, that being said, open a notepad and paste the following code as it is in it.

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Windows Registry Editor Version 5.00 [HKEY_CLASSES_ROOT\jpegfile\shell\open\DropTarget] "Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}" [HKEY_CLASSES_ROOT\pngfile\shell\open\DropTarget] "Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}" [HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\open] "MuiVerb"="@photoviewer.dll,-3043" [HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\open\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\ 6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\ 00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\ 25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\ 00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\ 6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\ 00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\ 5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\ 00,31,00,00,00 [HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\open\DropTarget] "Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Bitmap] "ImageOptionFlags"=dword:00000001 "FriendlyTypeName"=hex(2):40,00,25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,\ 00,46,00,69,00,6c,00,65,00,73,00,25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,\ 77,00,73,00,20,00,50,00,68,00,6f,00,74,00,6f,00,20,00,56,00,69,00,65,00,77,\ 00,65,00,72,00,5c,00,50,00,68,00,6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,\ 65,00,72,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,33,00,30,00,35,00,36,00,00,\ 00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Bitmap\DefaultIcon] @="%SystemRoot%\\System32\\imageres.dll,-70" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Bitmap\shell\open\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\ 6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\ 00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\ 25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\ 00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\ 6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\ 00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\ 5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\ 00,31,00,00,00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Bitmap\shell\open\DropTarget] "Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}" [HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\print] "NeverDefault"="" [HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\print\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\ 6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\ 00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\ 25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\ 00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\ 6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\ 00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\ 5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\ 00,31,00,00,00 [HKEY_CLASSES_ROOT\Applications\photoviewer.dll\shell\print\DropTarget] "Clsid"="{60fd46de-f830-4894-a628-6fa81bc0190d}" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.JFIF] "EditFlags"=dword:00010000 "ImageOptionFlags"=dword:00000001 "FriendlyTypeName"=hex(2):40,00,25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,\ 00,46,00,69,00,6c,00,65,00,73,00,25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,\ 77,00,73,00,20,00,50,00,68,00,6f,00,74,00,6f,00,20,00,56,00,69,00,65,00,77,\ 00,65,00,72,00,5c,00,50,00,68,00,6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,\ 65,00,72,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,33,00,30,00,35,00,35,00,00,\ 00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.JFIF\DefaultIcon] @="%SystemRoot%\\System32\\imageres.dll,-72" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.JFIF\shell\open] "MuiVerb"=hex(2):40,00,25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,\ 69,00,6c,00,65,00,73,00,25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,\ 00,20,00,50,00,68,00,6f,00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,\ 72,00,5c,00,70,00,68,00,6f,00,74,00,6f,00,76,00,69,00,65,00,77,00,65,00,72,\ 00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,33,00,30,00,34,00,33,00,00,00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.JFIF\shell\open\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\ 6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\ 00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\ 25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\ 00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\ 6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\ 00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\ 5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\ 00,31,00,00,00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.JFIF\shell\open\DropTarget] "Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Jpeg] "EditFlags"=dword:00010000 "ImageOptionFlags"=dword:00000001 "FriendlyTypeName"=hex(2):40,00,25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,\ 00,46,00,69,00,6c,00,65,00,73,00,25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,\ 77,00,73,00,20,00,50,00,68,00,6f,00,74,00,6f,00,20,00,56,00,69,00,65,00,77,\ 00,65,00,72,00,5c,00,50,00,68,00,6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,\ 65,00,72,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,33,00,30,00,35,00,35,00,00,\ 00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Jpeg\DefaultIcon] @="%SystemRoot%\\System32\\imageres.dll,-72" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Jpeg\shell\open] "MuiVerb"=hex(2):40,00,25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,\ 69,00,6c,00,65,00,73,00,25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,\ 00,20,00,50,00,68,00,6f,00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,\ 72,00,5c,00,70,00,68,00,6f,00,74,00,6f,00,76,00,69,00,65,00,77,00,65,00,72,\ 00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,33,00,30,00,34,00,33,00,00,00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Jpeg\shell\open\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\ 6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\ 00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\ 25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\ 00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\ 6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\ 00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\ 5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\ 00,31,00,00,00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Jpeg\shell\open\DropTarget] "Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Gif] "ImageOptionFlags"=dword:00000001 "FriendlyTypeName"=hex(2):40,00,25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,\ 00,46,00,69,00,6c,00,65,00,73,00,25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,\ 77,00,73,00,20,00,50,00,68,00,6f,00,74,00,6f,00,20,00,56,00,69,00,65,00,77,\ 00,65,00,72,00,5c,00,50,00,68,00,6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,\ 65,00,72,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,33,00,30,00,35,00,37,00,00,\ 00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Gif\DefaultIcon] @="%SystemRoot%\\System32\\imageres.dll,-83" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Gif\shell\open\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\ 6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\ 00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\ 25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\ 00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\ 6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\ 00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\ 5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\ 00,31,00,00,00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Gif\shell\open\DropTarget] "Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Png] "ImageOptionFlags"=dword:00000001 "FriendlyTypeName"=hex(2):40,00,25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,\ 00,46,00,69,00,6c,00,65,00,73,00,25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,\ 77,00,73,00,20,00,50,00,68,00,6f,00,74,00,6f,00,20,00,56,00,69,00,65,00,77,\ 00,65,00,72,00,5c,00,50,00,68,00,6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,\ 65,00,72,00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,33,00,30,00,35,00,37,00,00,\ 00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Png\DefaultIcon] @="%SystemRoot%\\System32\\imageres.dll,-71" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Png\shell\open\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\ 6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\ 00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\ 25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\ 00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\ 6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\ 00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\ 5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\ 00,31,00,00,00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Png\shell\open\DropTarget] "Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Wdp] "EditFlags"=dword:00010000 "ImageOptionFlags"=dword:00000001 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Wdp\DefaultIcon] @="%SystemRoot%\\System32\\wmphoto.dll,-400" [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Wdp\shell\open] "MuiVerb"=hex(2):40,00,25,00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,\ 69,00,6c,00,65,00,73,00,25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,\ 00,20,00,50,00,68,00,6f,00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,\ 72,00,5c,00,70,00,68,00,6f,00,74,00,6f,00,76,00,69,00,65,00,77,00,65,00,72,\ 00,2e,00,64,00,6c,00,6c,00,2c,00,2d,00,33,00,30,00,34,00,33,00,00,00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Wdp\shell\open\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\ 6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\ 00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\ 25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\ 00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\ 6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\ 00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\ 5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\ 00,31,00,00,00 [HKEY_CLASSES_ROOT\PhotoViewer.FileAssoc.Wdp\shell\open\DropTarget] "Clsid"="{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}" [HKEY_CLASSES_ROOT\SystemFileAssociations\image\shell\Image Preview\command] @=hex(2):25,00,53,00,79,00,73,00,74,00,65,00,6d,00,52,00,6f,00,6f,00,74,00,25,\ 00,5c,00,53,00,79,00,73,00,74,00,65,00,6d,00,33,00,32,00,5c,00,72,00,75,00,\ 6e,00,64,00,6c,00,6c,00,33,00,32,00,2e,00,65,00,78,00,65,00,20,00,22,00,25,\ 00,50,00,72,00,6f,00,67,00,72,00,61,00,6d,00,46,00,69,00,6c,00,65,00,73,00,\ 25,00,5c,00,57,00,69,00,6e,00,64,00,6f,00,77,00,73,00,20,00,50,00,68,00,6f,\ 00,74,00,6f,00,20,00,56,00,69,00,65,00,77,00,65,00,72,00,5c,00,50,00,68,00,\ 6f,00,74,00,6f,00,56,00,69,00,65,00,77,00,65,00,72,00,2e,00,64,00,6c,00,6c,\ 00,22,00,2c,00,20,00,49,00,6d,00,61,00,67,00,65,00,56,00,69,00,65,00,77,00,\ 5f,00,46,00,75,00,6c,00,6c,00,73,00,63,00,72,00,65,00,65,00,6e,00,20,00,25,\ 00,31,00,00,00 [HKEY_CLASSES_ROOT\SystemFileAssociations\image\shell\Image Preview\DropTarget] "{FFE2A43C-56B9-4bf5-9A79-CC6D4285608A}"="" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities] "ApplicationDescription"="@%ProgramFiles%\\Windows Photo Viewer\\photoviewer.dll,-3069" "ApplicationName"="@%ProgramFiles%\\Windows Photo Viewer\\photoviewer.dll,-3009" [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows Photo Viewer\Capabilities\FileAssociations] ".cr2"="PhotoViewer.FileAssoc.Tiff" ".jpg"="PhotoViewer.FileAssoc.Jpeg" ".wdp"="PhotoViewer.FileAssoc.Wdp" ".jfif"="PhotoViewer.FileAssoc.JFIF" ".dib"="PhotoViewer.FileAssoc.Bitmap" ".png"="PhotoViewer.FileAssoc.Png" ".jxr"="PhotoViewer.FileAssoc.Wdp" ".bmp"="PhotoViewer.FileAssoc.Bitmap" ".jpe"="PhotoViewer.FileAssoc.Jpeg" ".jpeg"="PhotoViewer.FileAssoc.Jpeg" ".gif"="PhotoViewer.FileAssoc.Gif" ".tif"="PhotoViewer.FileAssoc.Tiff" ".tiff"="PhotoViewer.FileAssoc.Tiff"

---

Yup, that is a lot of keys and settings but you are almost done. Once you have pasted text into your new notepad document save it but as .REG, you can name it however you want but it has to be .REG extension. Once the file is saved double click on it to merge it into the Windows registry. You might need to turn off UAC for this operation (check our tutorial on this topic) and accept warning messages but once it is done you should now have an old photo viewer as a choice for your default viewing application. All you have to do now is to go to settings and go to default apps, under photo viewer you should see your current default viewing application, probably photos, click on it to see options and choose photo viewer and exit the Settings menu, and you're done.

Microsoft has cut out Russia from downloading ISO files for Windows 10 and Windows 11 as well as installation tools without any explanation or reason behind this.

If you connect via VPN to a Russian server and try to download either ISO files or installation tools you will be greeted with the error 404 and an explanation of File or Directory not found or There was a problem with your request.

At this time you can still download Windows 11 Media creation tool but once you run it will throw a 0x80072F8F-0x20000 error with text: For some unknown reason, this tool failed to run on your computer.

People in Russia can still download files if they connect via VPN and go to a server located outside Russia.

Microsoft has not published any explanation why is this happening, it might be technical difficulty or it could be on purpose.

Other histories of Microsoft vs Russia

Since the beginning of the Russian military operation in Ukraine Microsoft has been putting restrictions on Russia starting with a suspension of all sales in March, next month in April Microsoft started suspending developer's accounts on GitHub linked to sanctioned companies and the suspension was even if the developer is not working for a given company or left it.

At the beginning of this month, Microsft laid off 400 employees inside Russia as they began scaling back operations in the country but has also stated that they would continue to provide services to all contractors and customers inside Russia so this sudden blocking of downloads is unexpected and it goes against their statement.

Error Code 0x800704c7 – What is it?

Error code 0x800704c7 occurs when Windows users attempt to update their system. It affects various Windows users including those using Windows 7, Windows 8, and 8.1 and Windows 10. It usually occurs due to poor maintenance of the system and includes common symptoms such as the following:

• Inability to upgrade your Windows operating system
• Message box with error code 0x800704c7

Solution

Error Causes

Error code 0x800704c7 in Windows 10 can occur due to several reasons. For instance, it may be due to corrupted or missing system files. It may also result from malicious programs affecting your system or occur when a program or several programs are running in the background of one’s system while the user attempts to run the update.

To correct this issue, Windows users will need to select one or a few methods, depending on the issues affecting their PC.

Further Information and Manual Repair

Some of the best solutions for error code 0x800704c7 available to Windows users including using tools to scan for missing systems files or correct other issues inherent within your system.

These methods may include the use of Command Prompt and the performance of technical repair procedures. If you are uncertain of your skills, avoid compounding the issue or causing further damage to your PC by contacting a skilled Windows repair technician. This IT professional will be best equipped to use Windows tools and other methods to resolve error code 0x800704c7.

Method One: Scan Your System for Missing or Corrupt System Files

Using System File Checker Tool (SFC), Windows users can check their system for missing o corrupt system files. These utility tools within your Windows device will be able to replace missing files and repair corrupted ones, resulting in a more efficient system.  Run this tool by following the steps below:

• Step One: Go to Start and type Command Prompt or CMD.
• Step Two: Run as Administrator
• Step Three: Type sfc /scannow. (Be sure to place a space between “sfc” and “/scannow”).

After running these procedures, check if the error code has been resolved. Go to Settings > Update & security > Windows Update. Update your Windows operating system. If error code 0x800704c7 reoccurs, you will need to try the next method below.

Method Two: Restore your System

System Restore is one of the best manual repair solutions Windows users can apply when they come across error codes like error code 0x800704c7. That’s because this method requires no technical or advanced knowledge and therefore can be performed by anyone. Simply follow the steps below to restore your system to a period of time in the past where the error was not present on your system. If done correctly, this could enable you to resolve the issue with little frustration on your part.

• Step one: Type Control Panel in the search bar near the Start button
• Step two: Select Control Panel, then Recovery
• Step three: Select System Restore then click Next
• Step four: Select a restore point before appeared on your Windows 10 system
• Step five: Select Next then Finish

Note that once System Restore is enabled it will remove drivers, apps, and even updates installed after the restore point. For this reason, be careful to choose the most appropriate restore point. Also once you’ve completed this task, check to see if you are able to update your system. If the update stops before the process is complete and a message box occurs with the error code 0x800704c7, proceed to the next manual repair option below.

Method Three: Check for and Remove Malware

Viruses or other forms of malware can adversely affect your system, causing error codes and other issues to take place. To resolve error code 0x800704c7 in Windows 10, check for and remove malware using a reputable anti-malware program.

If no anti-virus software is present on your system or if you scan your device but fail to spot an issue, proceed to method four.

Method Four: Use an Automated Tool

This method involves the use of a powerful automated tool. But why is this important you might ask? A third-party tool is often the best solution when all manual repair efforts fail. Automated tools come equipped to tackle the most serious PC problems including error codes which can cause frustration and result in reduces PC performance.

Error 504 - What is it?

Error 504 is a type of runtime error that occurs on Windows PC. A runtime error is a bug that causes software or hardware problems thereby preventing programs from working on your PC correctly. This error may occur during the execution of the program.  It also slows down your PC performance.

Solution

Error Causes

Error 504 can be triggered by many causes such as:

• Incompatibility between 2 software programs
• Malicious software
• Missing DLL files
• Registry issues

Further Information and Manual Repair

Whenever you experience the error 504 on your system, it is advisable to resolve it immediately, typically because runtime errors like error 504 can lead to system failure and valuable data loss which is more than often hard to recover. To resolve this error code, you don’t necessarily have to hire a professional for the job. In fact, here are some solutions that you can try to fix by yourself, even if you are not a computer programmer.

1. Get the latest updates for Windows and for the program showing the error

This is a quick way to resolve runtime error 504 on Windows PC. To update the latest updates for Windows and for the program causing the error, open Windows Update by going to the start menu. In the search box type ‘update’ and then in the list of results click Windows Update.  In the left pane click on check for updates, wait while Windows looks for the latest updates. It will show you a list of updates available select the important updates that you want to install. Then click ok and then click install updates. After the updates are successfully complete, restart your PC and try running the application. If the error still persists, then try the solution given below.

2. Scan For Malicious Software

Sometimes the runtime error 504 may occur due to viral infection and malware. So, to resolve it download an antivirus. However, the antivirus can also slow down your PC performance.

3. Scan for Registry Issues

Another way to resolve it is to scan for registry issues. The registry and DLL files get damaged when it overloads with too much data. This particularly includes irrelevant and obsolete files. Registry issues trigger runtime errors like 504. The best way to resolve it is to download Restoro. This is an advanced and multi-functional PC Fixer embedded with multiple utilities like a registry cleaner, an antivirus, and a system optimizer. The registry cleaning utility resolves registry issues by removing the unnecessary files completely and repairing the damaged dll files. The antivirus module scans and removes all kinds of malicious software on your PC like viruses and Trojans, thereby resolving the runtime error 504 in seconds. As for speed, Restoro also functions as a system optimizer which boosts the performance of your system significantly. Restoro is safe and bug-free software. It has simple navigation and a user-friendly interface which makes it very easy to operate and workaround. It is compatible with all Windows versions. Click here to download Restoro and resolve error 504 today!

What is Error Code 0xC004C003?

Error code 0xC004C003 has to do with activating Windows 10 after a clean install. This problem has been a frequent nuisance to users trying to update from Windows 7 or 8.1 following the invite path they got from Microsoft.

Solution

Error Causes

There are several problems that may have caused error code 0xC004C003. The most common of them are:

• The product key entered was invalid, and cannot be used to activate the new OS.
• The user followed the proper installation procedure, but the Windows update servers were too busy to handle the activation at that moment.
• The free upgrade invitation was followed but after the reinstallation, the copy of Windows 10 was still not activated.
• The user tried to perform a full clean install of Windows 10 instead of upgrading from Windows to Windows 10

Further Information and Manual Repair

A lot of solving error code 0xC004C003 has to do with the method in which the user has tried to update the system. If one decided to try and update the program before being invited to do so by the update manager, he must wait. Unfortunately, if one chooses to do it on his own and download a clean install, he was never given a product code to authenticate the process. There are two options to address error code 0xC004C003 — either restore to the previous Windows Operating System or call Microsoft (or visit their Website) and purchase a product key. The Windows update servers are very busy. There are lots of Microsoft users around the world, and the servers are doing their best to get to each and every one of the users as fast as possible, but they can only move at a certain speed. Your best bet is to sit back and wait a while. But what if you were invited, and properly downloaded Windows 10, then decided to do a clean install? It is advised that one do not try to enter Windows 7 or 8.1 serial code as this will not work. However, unlike the problem above, these users will NOT need to purchase a product key. According to Microsoft Support Staff, the installation servers are also very jammed because of the high numbers of installations going on right now. No matter what posts you may read, the key IS genuine, and it is NOT blocked, broken, or invalid. To check if Windows has been properly activated, open the Command Window. Make sure you are logged into an administrator profile; otherwise this check will not work. Type in “slmgr.vbs/ato” and click Enter and then wait. While waiting, the command will check on the status of the activation. Windows Script Host will open and show whether or not it is activated. A lot of users have reported that the activation did not work for the first few times. However they later reported after some more attempts, no issue was found in the way the operating system updated and that the activation process went smoothly. This is most likely due to the overload on the Windows Update servers, so bear with Microsoft. Users have reported that when trying to correct error code 0xC004C003, they have followed the upgrade path and then been told by Microsoft that the key was invalid and they had to purchase a new one. If the upgrade path provided by Windows 7 and Windows 8.1 is correctly followed then there is nothing to worry about Just wait a while and try it again. If there are prolonged issues, speak with a technician by visiting the Microsoft website and contacting the help center by calling the number provided. Give them all relevant information and they will be sure to help accordingly. The best solution to fix error code 0xC004C003 is to wait. In essence, the user will be waiting to reenter the same product key. According to Microsoft, and many user posts found online, it is recommended to wait a while and then try to activate again. This seemed to be an answer to most users' problems, and seem to work just fine. If the problem persists, take it to a windows repair technician to have it sorted out. If that does not work, use a powerful automated tool to fix the problem.

How summer is slowly slipping away and winter is coming people will spend more time indoors, and on top of that delta variant of Covid-19 is rampaging through the world. Being the gamer is now maybe the best time to be, sitting in the comfort of your home, safely isolated from viruses and people, just pushing buttons and emerging yourself in a vast world and new adventures. But games cost money, and sometimes being a gamer can be expensive, also the COVID situation makes it even more difficult to spend some time with friends. Do not worry, we are here to help. I am presenting you the list of MMO games that you should try or play during this COVID Winter, and since they are MMO games, you can play them with your friends and hang out in the virtual world. Some of them are also free to play so they will not cost you any money to enjoy them. The following list is not set in any particular order and remember that this is not a ranked list. There is no best MMO and I will not try to place any of these titles as one dominant, I will just point their style and who they might be for, it is up to you to decide which one you will pick and enjoy.

Best MMO’s in no particular order

EVE Online

EVE Online is one of the earliest MMO games out there but since its release, it is still actively developed and is receiving updates. This science-fiction Sandbox will offer space lovers everything they need and more. Large scale PvP, mining, pirating, etc. It can be daunting and complex for beginners but take your time to get familiar with its systems and you will be rewarded greatly with an immersive and complex game worth the time. Open PvP in some zones might not be everyone’s cup of tea and seeing only your ship might be a turn-off for some players, but if you do not mind these things give it a go. It is free to play with an item shop.

Final Fantasy XIV

FF14 had a tough start, so tough that it was scrapped and destroyed and has been remade again and that idea was great. The game now is better than ever and at this time it is experiencing large players from other games surging into it. This on the rails fantasy MMO will offer you a great story and great leveling experience. It has a free trial where you can play the whole original game for free but if you wish to continue playing you will have to buy the expansion and pay a monthly subscription but the content is well worth the money.

World of Warcraft

Let’s be honest, not a single list of MMO games cannot be without a once greatest and most successful MMO ever made, World of Warcraft. But instead of me praising the game why it was the greatest and why you should play it and how great it is I am going to take a little different approach. I am going to recommend you World of Warcraft classic, yup, you read it correctly, classic. Now World of Warcraft is a retail game with a subscription service but with that one subscription you will be able to access three games in the World of Warcraft universe: World of Warcraft retail (standard game), World of Warcraft Classic (vanilla WOW without expansions offering you experience as it once was when it was released) and World of Warcraft the Burning Crusade classic (same as WOW classic but with the first expansion the Burning Crusade). Among all solutions, I would really urge you to play either WOW classic or WOW TBC classic simply for reason that they are far superior games in comparison to typical retail ones, but if you like easier game go for retail, it is included in the sub anyway.

Guild Wars 2

Guild Wars 1 was one of my favorite games and I sank a lot of times in it and once Guild Wars 2 came I must admit I was pleasantly surprised with it and I would recommend it highly. The base game is completely free to play with only expansion to be purchased and it is buy to play model without monthly fees. It has specific mechanics different from other games and interesting classes to try. The living world is a great feature of the game and it is still very strong with its player base.

Star Wars: old republic

This game is made for people who enjoy, love, and like Star Wars. Mechanically besides being able to have henchmen with you and space battles (which I do not really like how they are done) game itself does not offer anything special. Where it shines is in the story and overall Star Wars experience. If you look at this game as a single-player game with multiplayer dungeons you will have a great time, since the story is really good but sadly end game lacks in comparison.

Elder Scrolls Online

I am going to admit something here, I was not fond of the idea to make the beloved Elder Scrolls series into MMO, but in time I gave it a go and I am really glad I did. This game is great and it is getting better and better as time progresses. It is buy to play without monthly fees and basic game free, same as FF14 but without fees. It has a decent community and offers a really good Elder Scrolls experience and now it is packing Morrowind expansions and other great areas. Highly recommended for any Elder Scrolls fan.

Lord of the Rings Online

This one is troublesome to recommend, on one side you have free to play games deeply inside Tolkien Lord of the Rings lore, on the other side, you have outdated graphics and some stupid item shop decisions like buys specific classes. But if you look past stupid item shop decisions and can live with playing free class in the game you will be pleasantly surprised. The game itself is surprisingly good, the story is great as expected from the game infused with lore taken from one of the best books series ever written, and the feeling when visiting iconic landscape is epic. But if I need to be real as I should, I would recommend this one to people appreciate good story and lore and ones that are fans of Lord of the Rings itself.

Neverwinter

Neverwinter is a premium and licensed D&D MMO game and it is well strange. The free-to-play model of the game will let you enjoy it until you hit the end game, then you will have to shell real money if you want to be competitive but the journey until then is great. I would recommend it to D&D lovers and people that love to try other people's maps, yup you read it correctly. Neverwinter has a map editor making it one of a kind MMO game where you can create your own dungeons and post them for other players to play, this user-generated content makes it a very specific beast in this list, and for that feature alone it has my recommendation.

Tera

Another one of the older titles, Tera will offer you nor depth nor anything new in terms of leveling, quests, or end game except… the COMBAT. This is maybe the greatest MMO Combat game ever created and it is quite fascinating that even after so many years no other game has managed to create a better combat system than one of Tera. If you enjoy action combat and like some specific aesthetics Tera is a game for you.

Albion

Albion is a sandbox game with open-world PvP and building mechanics where you can build your own forest, house, etc. You know, sandbox stuff, including a lot of crafting and well, other sandbox stuff. If you want great quests and some occasional play then skip Albion, this game is made for a more hardcore player base not being afraid to die and spend some time crafting and going through the economy. The best comparison might be with EVE but in fantasy settings.

Black Desert

Black Desert is also a sandbox game but different from Albion, here you can organize and hire a workforce and send them to different nodes on a map to harvest resources and build an economy while you are on some epic adventure. Housing is also included but you can buy already made houses instead of making your own in the world. Combat is a game that comes very close to Tera combat and it is very enjoyable. The end game is money sink and PvP based so be careful when choosing this one.

Secret World Legends

If you like occult and supernatural with new world order themes and conspiracy theories, Secret World Legends is the game for you. Somewhat little clunky its setting and story really set it apart in many many ways. It has semi-action combat and it is free to play with item shop but all the content can be experienced for free. Recommended for fans of deeper gameplay and horror lore.

Runescape

When I said no MMO list can be without World of Warcraft, it also cannot be without Runescape, one of the oldest games it was revamped with newer mechanics and graphics, free to play all the way and you can also pick old school Runescape if you really want to go all the way on a nostalgia trip. I would recommend a newer one for newer players, the game offers a great story and unusual quests infused with puzzles and interesting storylines. If you like really good quest design without fetch and grind quests along with interesting story this is a game for you.

AION

Last on my list would be AION, a very interesting game made also a long way back, but the fact that is completely free with the cosmetic shop will make it as one to recommend since you can experience the whole game for free. It has some limited flying mechanics in it and later game zone are open PvP zones, story is interesting and leveling process is enjoyable. Also game itself is not really easy and if not careful you can get yourself in danger quite quickly. Recommended for old-school feeling.

Conclusion

That's it, there are many more MMO games out there but some are on verge of closing down and some are plainly bad. I hope that I have made your choice easier and that you will find one or a few from this list to spend your time in it. Remember, stay safe and take care of yourself.

Graphic cards are essential to our computers but from time to time in the race to make better GPU and to grab a large portion of the market bad drivers get released and can create really unwanted and unpleasant experiences, from Windows freezes to the black screen of death, to AMD driver Windows crashing down and many more. This article will cover basic troubleshooting with AMD drivers and offer you solutions on how to fix them.

1. Rollback the previous version of the driver.

   Installing the new driver version is the reason for this particular error, so naturally rolling back the previous version which was stable and did not cause issues will solve the problem. To roll back the previous version of drivers follow the next steps: Open Start menu and click on settings, go to system and choose Apps and features Find: AMD Catalyst Install Manager, right-click on it, and choose to uninstall Go to AMD official website and download the previous driver version, install it on your computer Turn off automatic driver updates and reboot your system

2. Reinstall the driver

   Sometimes it is not a bug in the released driver, it is a corruption of files because of file transfer or any other specific reason. The reinstalling driver will fix an issue if this is the case. To reinstall the driver Press ⊞ WINDOWS + X and choose Device Manager Expand Display adapters, right-click on AMD device and choose to uninstall Go to the official AMD website, download the latest driver and install it Reboot your system

3. Disable browser extensions

   Some users have reported that error occurs only when they are watching videos online, if this is your case, go to your browser options and disable extensions to see if this will remove the problem.

4. Remove Lucid Virty MVP

   If by any chance have this relic installed on your system, go to Applications and remove it. It is an old program shipped with old drivers and it is usually present in your Windows that was upgraded from 8.1 to 10. Uninstall it and see if this fixes your issue.

5. Clean your graphic card

   Sometimes this error can happen due to excessive dust on your GPU, if you have the expertise, clean it or take it somewhere to be cleaned.

What is Error 1706?

Error 1706 is a Windows PC error. It occurs when you insert a Microsoft CD-ROM either to repair an Office or to install a feature set to Installed on First Use. The error message is displayed in the following format: Error 1706. Setup cannot find the required files. Check your connection to the network, or CD-ROM drive. For other potential solutions to this problem, see C:\Program Files\Microsoft Office\Office101033\Setup.hlp.

Solution

Error Causes

Error 1706 may occur due to several reasons. These include:

• You originally installed MS Office from a network administrative installation
• You are trying to use Office CD-ROM when the error is prompted by the Windows Installer for an Office source location
• Viral Infection

Further Information and Manual Repair

The good news is that this error code is not fatal. However, to avoid inconvenience, it is recommended to resolve the error right away. To fix the problem you don’t have to be a computer programmer or hire one. In fact, this error code can be resolved quite easily. Here are some of the best and easiest do it yourself methods to resolve error 1706 on your PC:

Method 1

To resolve this issue find a different administrative installation for the Office source file location. To do this, go to the start menu and then click run. In the open box, simply type this command line new network pathSetup.exe /fvm package name.msi and press OK to continue and update changes. Once the update is complete and finished press OK to save and proceed. Please note after you follow these steps, the Windows Installer uses this new server location whenever it needs to reinstall, repair, or add a feature to your Office Installation.

Method 2

Another alternative method to resolve this method is to use CD-ROM for the Office Source Location. To do this you will have to remove Office and then re-install Office from the CD-ROM. Here are the steps to remove the Office program. First, quit all Office programs.

1. Go to the Control Panel then click on the Program and Features option.
2. Now double click the Add/Remove programs and remove the entry for the Microsoft Office 2003 or Microsoft Office XP product installed on your PC.
3. After that, click on the Maintenance Mode Options dialog box, select Uninstall Office, and then click Next to proceed.
4. Click Yes to confirm changes.
5. Now insert Office 2003 or Office XP CD-ROM and follow the setup dialog boxes to reinstall the program on your system from CD-ROM.

Download Restoro to Correct Registry Errors

However, to ensure the installation is successful this time around, it is advisable to clean the registry and ensure the uninstalled program is not located in the registry. To do this, download Restoro and run it on your computer. This is a powerful PC Fixer integrated with a registry cleaner. The registry cleaner wipes out all the unnecessary files and uninstalled program files saved in the registry. Once the registry is cleaned, try reinstalling MS Office again. This will resolve the error 1706. Click here to download Restoro and repair error 1706.

Access denied error code 16 is tied to websites, it is an error which you will encounter when trying to visit some specific website or if you are unlucky on all of the websites. Lucky for us this error is fixable and in order for us to do this, follow this guide for possible solutions.

1. Check Date and Time, Incorrect date and time can often interfere with services in your Windows, browsers are not different and this can cause some websites not to be shown. Check your date and time and set it correctly if needed.
2. Try to access the website from another device. If you manage to open a website on another PC or some other device then keep reading in order to find the solution, if you can not, then the problem is on the website itself.
3. Turn off Firewall or antivirus. New antivirus and firewall applications can sometimes mark certain websites as malicious and will cut contact with them rendering them unable to be accessed or opened. Try turning the firewall and antivirus temporarily off and then try to access the website.
4. Try opening web site in another browser. To eliminate browser-specific issues and their configuration, try opening the website in another browser.
5. Disable PROXI server. Some applications, especially malicious ones can change your proxi setting in LAN. go to your LAN settings and turn off proxi if it is enabled.
6. Reset your Browser. If this issue is caused by bad data in your browser or by its settings and preferences, resetting the complete browser will solve the issue.
7. Use VPN. Sometimes the reason for you was not able to access some website might be because the site is not available for your region, to bypass this issue use VPN and reroute your location.

Upgrading your Windows 10 computer does not always go smoothly and you often encounter not just one but various errors so, in this post, we are going to cover several Windows 10 upgrade errors such as 80240020, 8007002C, 80246007, 80070004. All these upgrade errors are related to the Windows Update folder. Thus, you need to clear the Software Distribution folder, repair the System Image and fix System Health in order to resolve all these Windows 10 Upgrade errors. Before you get started on the steps to resolve these tons of errors, you have to disable your security program for the meantime, disconnect your peripherals, remove USBs connected to your PC and then make sure that your PC is connected to the main power supply. Once you have everything covered, carefully follow the options given below.

Option 1 – Delete Windows 10 Update Files in the SoftwareDistribution folder

The Software Distribution folder in the Windows operating system is a folder that can be found in the Windows directory and is used to store files temporarily which might be required to install the Windows Update on your PC. Thus, it is required by the Windows Update and maintained by WUAgent. A lot of users tried deleting the files in this folder to fix the problem and so far it has worked. Like them, you can try clearing the Windows Update cache by simply deleting the contents of the folder named “SoftwareDistribution” since Windows apparently can’t clear and re-download the update contents once they are corrupted. Thus, deleting the contents of this folder will make Windows download the contents again which will fix the problem. To do that, follow the steps below.

• Open the WinX Menu.
• From there, open Command Prompt as admin.
• Then type in the following command – don’t forget to hit Enter right after typing each one of them.

net stop wuauserv net stop bits

• After entering these commands, it will stop the Windows Update Service and the Background Intelligent Transfer Service.
• Next, go to the C:\Windows\SoftwareDistribution folder and get rid of all the folders and files thereby tapping the Ctrl + A keys to select them all and then click on Delete. Note that if the files are in use, you won’t be able to delete them.
• Once all the contents in the Software Distribution folder are deleted, restart your PC and then go back to Command Prompt and input the following commands again.

net start wuauserv net start bits

Since the folder has already been flushed, it will be populated afresh the instant your restart your computer and open Windows Update.

• Now Open Settings and check for Windows Updates. Windows 10 should begin the download right away.

Option 2 – Try using the DISM tool

Running the DISM Tool helps in repairing the Windows System Image as well as the Windows Component Store in Windows 10. Using this built-in tool, you have various options such as the “/ScanHealth”, “/CheckHealth”, and “/RestoreHealth”.

• Open the Command Prompt with admin privileges.
• Then type in the following commands and make sure to hit Enter right after you type each one of them:
  • Dism /Online /Cleanup-Image /CheckHealth
  • Dism /Online /Cleanup-Image /ScanHealth
  • exe /Online /Cleanup-image /Restorehealth
• Do not close the window if the process takes a while as it will probably take a few minutes to finish.

Note: If it happens that the Windows Update client is broken, you need to run the following command to repair it then restart your PC and click on Update once again.

DISM.exe /Online /Cleanup-Image /RestoreHealth /Source:C:RepairSourceWindows /LimitAccess

Note: The Windows Upgrade error, with error code 80240020 is an expected error message that happens when the upgrade requires customer user action. Thus, you need to do the following steps to resolve this particular Windows Upgrade error.

• Tap the Win + R keys to open the Run dialog box.
• Then type “regedit” in the field and hit Enter to open the Registry Editor.
• After that, navigate to this registry key: HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionWindowsUpdate
• Now right click on WindowsUpdate located in the left pane and then create a new key and name it as “OSUpgrade”
• Next, right-click in an empty space in the left pane and create a new DWORD and name it “AllowOSUpgrade” and enter “1” as its value.

Option 3 – Try running the Windows Update in a Clean Boot State.

Putting your PC in a Clean Boot state can also help you install Windows Updates or Upgrades without any trouble because, during this state, you can start the system with a minimum number of drivers and startup programs that will surely help you in isolating the root cause of the issue.

• Log onto your PC as an administrator.
• Type in MSConfig in the Start Search to open the System Configuration utility.
• From there, go to the General tab and click “Selective startup”.
• Clear the “Load Startup items” checkbox and make sure that the “Load System Services” and “Use Original boot configuration” options are checked.
• Next, click the Services tab and select the “Hide All Microsoft Services” checkbox.
• Click Disable all.
• Click on Apply/OK and restart your PC. (This will put your PC into a Clean Boot State. And configure Windows to use the usual startup, just simply undo the changes.)
• After that, try to install the Windows Updates or upgrade again.