Windows Sandbox item is greyed out

Computer upgrades are the most common and most efficient ones. RAM upgrade is one of the easiest ones you can do and the most common ones but even as simple an upgrade as this one can cause certain issues. If you are experiencing error 0164, memory size decreased after RAM upgrade we are offering you solutions on how to fix this particular error and get your computer back in working order.

1. Change BIOS settings

   Enter your motherboard BIOS (usually by pressing the del key on startup) Load BIOS defaults Save changes and exit If the Error 0164: Memory size decreased issue persists even after loading setup defaults, then it must be configured manually inside the BIOS.

2. Clear CMOS

   Follow the instructions precisely:
   • Turn off all peripheral devices connected to the computer.
   • Disconnect the power cord from the AC power source.
   • Remove the computer cover.
   • Find the battery on the board. The battery may be in a horizontal or vertical battery holder or connected to an onboard header with a wire.
   If the battery is in a holder, note the orientation of the + and – on the battery. With a medium flat-blade screwdriver, gently pry the battery-free from its connector. If the battery is connected to an onboard header with a wire, disconnect the wire from the onboard header.
   • Wait one hour, then reconnect the battery.
   • Put the computer cover back on.
   • Plug the computer and all devices back in.
   • Power on the computer.

Microsoft has started to use group along with every open window in the Taskbar ever since the release of Windows 10. Early on, they used to show an individual entry for each one of the windows after grouping them which makes the taskbar look cleaner and organized. However, the main issue lies in the fact that you have to hover on your desired window to get on to them. At the time of writing, you need to tap the Ctrl key and click on the taskbar icon to open the last active window but you have to only click on the program’s taskbar icon after you apply the tweak given in this post for the last active window to open. Take note that the “Last Active” windows feature will only work if the taskbar buttons are combined. Before you get started doing the instructions given below, you need to create a System Restore Point first since you will be dealing with registry files and modifying some of the critical settings in Windows 10. Once you’ve done this, proceed to the given steps below. Step 1: Tap the Win + R keys to open the Run dialog box and then type “Regedit” in the field and hit Enter to open the Registry Editor. Step 2: If a User Account Control or UAC prompt appears, just click on Yes to proceed to open the Registry Editor. Step 3: Next, navigate to the following registry path:

HKEY_CURRENT_USERSoftwareMicrosoftWindowsCurrentVersionExplorerAdvanced

Step 4: From there, right-click on the right side of the panel and select New > DWORD (32-bit) and then name it “LastActiveClick”. Step 5: After that, double click on the newly created DWORd to modify its value. Put “1” as its value data. Step 6: Then click OK and close the Registry Editor. Step 7: Now restart your computer to successfully apply the changes made. Note: In case you want to revert back to the default configuration, all you have to do is set the value data of LastActiveClick to “0” or simply delete that DWORD and restart your computer to successfully apply the changes made.

Most scrollbars are hidden by default if they are not used in Windows 11. If you are not ok with this feature and want scrollbars to be always visible and available do not worry, turning them ON is very easy.

• Press ⊞ WINDOWS + I to open Windows settings
• Click on Accessibility in the sidebar
• Select Visual Effects
• Inside visual effects settings find Always show scrollbars and switch it ON

Windows 11 will save settings automatically and apply setting right away. Close settings and continue with work.

The previous Windows versions all came with Microsoft's browser Internet Explorer. A lot of users love it because not only that it is easy to use. It is also very fast. Users didn’t have to worry about compatibility because it is almost always compatible with its Windows Version. When they introduced Windows 10, they changed the name of the browser from Internet Explorer to Microsoft Edge. It is faster and more user-friendly compared to its predecessors. But after the Creator Update, some experienced receiving the inet_e_resource_not_found error code. In contrary to what everyone expects, you actually don’t have to uninstall and reinstall the Microsoft Edge App. What you can do is reset the browser in your Apps & Features Settings in your Microsoft Settings.

To reset the browser you can follow the steps below:

1. Click on the Windows icon and go to settings.
2. Click on Apps and this will bring you to the Apps & Features page. Look for Microsoft Edge from the list of Apps and click on it.
3. Choose Advance Option
4. Scroll down then Under Reset, click on repair or reset. When you repair it will fix the existing problem but the data that caused the problem may still be present and can still cause problems. If you click on reset, it will delete all the cache and cookies that are installed in your browser but it will save your Favorites as well as your bookmarks.

Another way to resolve this is by disabling the feature TCP Fast Open on Microsoft Edge. To disable this, go ahead and follow the steps below:

1. Open the Microsoft Edge browser.
2. Type in about: flags on the Address (URL) bar.
3. Under Networking, uncheck the Enable TCP Fast Open.
4. Close your Microsoft Edge browser and open a new one.

Flushing the DNS also worked for other Users. Sometimes, the error code the inet_e_resource_not_found is caused by a corrupted DNS cache. There are 2 ways to flush your DNS. The first option is to use the command prompt to run the command.

1. To access the Command prompt or CMD, you can search for it on Cortana or you can click on the Windows icon to access the Programs, scroll down to the Windows System folder and click on it.
2. A dropdown menu will show up, click on Command Prompt which is the first on the list.
3. Type in the code ipconfig /flushdns and press enter.
4. There will be a message that will show that says Windows IP configuration successfully flushed the DNS Resolver Cache
5. Exit the CMD by typing exit and press enter.

The easiest way to do this is to Press the keys Window + R on your keyboard. Type in ipconfig /flushdns in the search box and hit enter or click on OK. These are only some of the ways to resolve the inet_e_resource_not_found. There are other ways to further troubleshoot this issue such as reinstalling your Wifi Adapter Driver or adjusting the DNS Server Address. But most of the time, users are able to resolve the issue with the steps provided above.

If you receive an error message saying, “The proxy server is refusing connections” while trying to open a website on your Google Chrome or Mozilla Firefox browser in Windows 10, then read on as this post will guide you in fixing this error. This kind of error occurs when you have a wrong or dead proxy configuration or when you are using some VPN service. However, this kind of error could also mean that your computer might be infected by malware which caused some changes in the internal settings. Whatever triggered the error, here are some suggestions that could help in fixing it.

Option 1 – Check the proxy settings in your browser

Like other browsers, Firefox allows users to set up proxy in several ways. However, if you’ve made any changes recently which might have caused the error, the first thing you can do is to check the proxy settings in your Firefox browser. Follow the steps below to do so.

• • Open the browser and go to Menu and then click Options.
  • After that, go to the General tab and scroll down and click the Settings button under Network Settings.

• From there, make sure that the Use system proxy settings option is set. If not, you have to enable No proxy and then save the changes made.
• Now check if the “The proxy server is refusing connections” error is fixed or not.

Note: If you want to use a proxy in Firefox, you have to select the Manual proxy configuration and set it up properly. And if your network has a proxy setting and you want to grab that, you have to opt for the Auto-detect proxy settings for this network option.

Option 2 – Try disabling the proxy server for your LAN

If your PC was just attacked by some adware or malware as of late, it is possible that it has changed the network settings in the system and might display spam advertisements. Thus, you have to disable the proxy server for your LAN. To do that, refer to these steps:

• Tap the Win + R keys to open the Run dialog box.
• Then type “inetcpl.cpl” in the field and hit Enter to pull up the Internet Properties.
• After that, go to the Connections tab and select the LAN settings.
• From there. Uncheck the “Use a Proxy Server” option for your LAN and then make sure that the “Automatically detect settings” option is checked.
• Now click the OK and the Apply buttons.
• Restart your PC.

Note: If you are using a third-party proxy service, you have to disable it.

Option 3 – Try disabling the manual proxy setup from Settings

In case you miss it, there is actually an option in the Settings panel that you can use to set up a proxy in your Windows 10 computer. So if you encounter the “The proxy server is refusing connections” error, you should disable manual proxy for the meantime and check if it fixed the error or not.

• Tap the Win + I keys to open the Windows Settings.
• Then go to Network & Internet > Proxy.
• And on your right-hand side, ensure that the Automatically detect settings are enabled and that the Use a proxy server option under the Manual proxy setup is disabled.
• Now try to open any website again and see if the problem’s fixed.

Option 4 – Check your VPN

If you are using a VPN application, there are times when it causes some issues like this error. If that’s the case, you can try to disable your VPN temporarily and see if the error is resolved or not and if turns out that your VPN is the culprit, you have to uninstall it and install a new one or its latest version. To uninstall it, follow the steps below.

• Tap the Win + R keys to open the Run dialog box
• Then type “appwiz.cpl” in the field and hit Enter to open the Programs and Features in Control Panel.
• From there, look for the VPN service you are using, select it and then click on Uninstall to remove it.
• After that, restart your computer and try to install the latest version of the program again. It should work now. If not, proceed to the next available option below.

Option 5 – Clear your browser’s internet cache

You actually have the option to Hard Refresh in order to clear the cache of your browser either pressing key combination Ctrl +F5.

Option 6 – Try scanning your computer using Windows Defender

As mentioned, the “The proxy server is refusing connections” might be caused by some malware in the system and so to eliminate the malware, you have to scan your computer using security programs like Windows Defender.

• Tap the Win + I keys to open Update & Security.
• Then click on the Windows Security option and open Windows Defender Security Center.
• Next, click on Virus & threat protection > Run a new advanced scan.
• Now make sure that Full Scan is selected from the menu and then click the Scan Now button to get started.

Having a youtube channel nowadays is quite an easy task, you just need to create a free google account and there you go, you can start uploading videos to your YouTube channel. All you need in today's world is some applications for manipulating video material, creation of titles and graphics, some charisma and ideas for content and you could be a well-known YouTuber. For some guidance on software needed for this kind of creativity, we urge you to check our article about open source free software alternatives to paying ones here. So now that we have technicality out of way there is one more prerequisite that is needed in order for you to have your unique custom URL for your channel.

• The channel must be at least 30 days old.
• The channel must have a profile picture and a banner image.
• The channel must have at least 100 subscribers.

You need to fulfill all three prerequisites in order to change your typical URL to something nicer and personal like youtube.com/myGREATchannel So if you have everything needed let's get that custom URL for your channel.

1. Sign in to your YouTube channel
2. On the top-right corner of the YouTube window, click on your profile picture.
3. From the drop-down menu, select YouTube Studio.
4. From the list on the right side of the YouTube Studio page, select Customization.
5. Under Channel customization, select Basic info.
6. Under Channel URL, click on Set a custom URL for your channel.
7. Your custom URL will appear in the box below. You can change it as you desire.
8. Click on the Publish button on the top-right corner of the window to set your custom URL.

WORD OF WARNING:

Once the custom URL is set, it can neither be changed nor transferred to someone else so make sure that channel name is really something that you want for the long run.

Adobe.DLL is one of the numerous Dll files you are going to encounter on your Personal Computer. This isn't a system-established service and is usually the consequence of the sort of applications you install on your own Personal Computer. Because adobe.dll is a low-program process, in the event that you find it present on your pc, you can easily end it. It isn't required for the normal working of your OS but might trigger permanent harm if left unchecked. Don't forget that the Computer uses the AdobePDF.dll file for assorted tasks, and you need to make sure it's installed correctly.

Solution

Error Causes

When the adobe.dll is left un-fixed, you may shortly have to deal with sluggishness on your Computer. Simply put, this impedes the standard and amount of work you do while using your PC and impacts your productivity. Sometimes, adobe.dll happens because your computer experiences an overload. As a result, while resolving the malfunction, you've got to look for methods of decreasing the system overload. It's possible that lots of processes are functioning on your PC concurrently. Quit these processes. Lousy setup of the adobe.dll file causes this error too. Check and fix the files and settings that Adobe.Dll requires to run and you may not have to content with these error anymore.

Further Information and Manual Repair

Even though the adobe.dll may severely influence the functioning of your Computer, it is really a trouble or malfunction that one can fix manually.

• Permanently Un-Installing the Adobe.dll Component is one of the better methods for repairing the malfunction.

Yes, you are able to completely eliminate the adobe.dll issue. The thing you really need to do is un-install it from your own computer fully, and for good.

• Quit the many processes operating on your Computer and you may get rid of the adobe.dll malfunction.

Adobe.dll regularly happens due to system overload. Thus, the first thing you need to assess is if several processes are operating on the device. If they're, search for methods to stop them, and you'll not have to worry about the adobe.dll error anymore.

• Utilize Microsoft System Configuration Utility

The MS System-Configuration Utility will settle the system overload problem, thus freeing up space for your programs to run smoothly and possibly avoid malfunctions, including adobe.dll. The Microsoft System-Configuration Utility manually locates and eliminates all running processes.

• Perform Scans On Your Computer

Running scans on your own Computer may enhance or increase its operation. This technique may also aid in examining your Computer for adobe.dll, or such associated malfunctions, and resolve them forever.

• Repair Adobe.Dll Files and Settings' Errors.

Considering that the adobe.dll malfunctions can be a result of the existence of malfunctions on your own PC's files and options, fix these properly. Begin by fixing the settings on the files and options utilized by your Computer to perform the adobe.dll, and you may have removed this issue completely. Finally, establish the source of the error message to effectively solve it. Once you do that and fix it, your PC will resume normal operations and even boost your work and productivity.

One of the most common and bothersome issues with a printer is when it refuses to get configured or set up on your computer. Thus when your printer has some configuration issues, you will most likely encounter the error 0x00000709. This occurs if there is already a default printer set and configured or Windows does not want to configure the new printer at all. The operation could not be completed (error 0x00000709), Double check the printer name and make sure that the printer is connected to the network. Today, we will try two fixes that may help you get rid of this error.

Option 1 – Run the Printer Troubleshooter

One of the first basic troubleshooting you can perform to resolve the printer issue is running the Printer Troubleshooter. This built-in troubleshooter can detect and automatically fix the problem for you. To use it, follow these steps:

• Tap the Win + R keys to open the Run dialog box.
• Next, type “exe /id PrinterDiagnostic” in the field and click OK or hit Enter to open the Printer Troubleshooter.
• Then click the Next button and follow the next on-screen instructions to fix the issue with the printer.

Option 2 – Try to use some Registry tweaks to add the Printer

You might want to use some tweaks to add the Printer but before you proceed, make sure to create a System Restore Point so that if anything goes out of hand, you can always undo the changes you’ve made.

• Tap the Win + R keys to open the Run dialog box.
• Next, type “Regedit” in the field and hit Enter to open the Registry Editor.
• When a UAC or User Account Control prompt appears, click Yes.
• Once you’ve opened the Registry Editor, go to the following key location:

HKEY_CURRENT_USERSoftwareMicrosoftWindows NTCurrentVersionWindows

• From there, double click on the file named “Device on the right side pane under the Windows folder.
• Now add the name of your printer in the Value Data field as you can see below and then click the OK button.

Note: As you can see on the image above, you must not change the “.winspool.Ne02:” part and only the first one which is the name of your printer.

• After that, you will get a message that says, “Cannot edit Device: Error writing the value’s new contents, simply click on OK again. You have to take note of the existing permissions before you proceed to the next step. Once you’ve added the Printer, make sure to reverse the changes you’ve made to the Permissions.
• Now right click on the Windows folder located on the left pane and click on Permission.
• Select Restricted under the Group or user names section.
• Then check the checkboxes for “Full Control”, “Read” and “Special Permissions” under the Permissions for RESTRICTED section.
• After that click the Apply button and then OK to save the changes made.
• Next, right-click on the file named “UserSelectdDefault” and select Rename to rename it to your printer’s name.
• Now restart your computer to successfully apply the changes made.
• After the printer is added, don’t forget to reverse the Permission changes you’ve made early on.

Option 3 – Try updating the Printer drivers

You might also want to try updating your printer drivers. All you have to do is locate the USB Composite Device. For complete details, follow the steps below.

• First, click the Start button and type “device manager”.
• Then click on the “Device Manager” from the search results to open it.
• From there, look for the USB Composite Device option and right-click on it, and select the Update Driver from the options.
• Restart your PC and then click the “Search automatically for updated driver software” option.

Note: You also have the option to download the latest version of your Printer from the manufacturer’s website.

If you are a kid or in your teenage years you maybe will be not familiar with Commodore 64 but we are welcoming you anyway to go with us on this journey through time and find out about one of the most influential and beloved home computer of all time.

History of Commodore

Firstly shown to the world in January of 1982, at the Consumer Electronics Show, C64 caught attention right away with its low price of only $595. Although it had some issues like limited functionality in some fields and a non-wide range of use by 1984 its price dropped below $200 and it cemented itself as an affordable home computer for the middle class. In as same year Apple has released their Apple II computer with far superior capabilities, commodore 64 remains a middle-class favorite due to its price. Also, the company has decided to distribute its homemade computer via some other means including not only just electronics stores specialized in that kind of equipment but in general shops and big department stores, through toy stores and book shops as well as through specialized dealers. This has given C64 a more competitive edge and mixed with the affordable price it soon became a staple of home computing. With sales booming and the early reliability issues with the hardware addressed, software for the C64 began to grow in size and ambition during 1984. This growth shifted to the primary focus of most US game developers. The two holdouts were Sierra, who largely skipped over the C64 in favor of Apple and PC compatible machines, and Broderbund, who was heavily invested in educational software and developed primarily around the Apple II. In the North American market, the disk format had become nearly universal while cassette and cartridge-based software all but disappeared. So most US-developed games by this point grew large enough to require multi-loading. At a mid-1984 conference of game developers and experts at Origins Game Fair, Dan Bunten, Sid Meier, and a representative of Avalon Hill said that they were developing games for the C64 first as the most promising market. By 1985, games were an estimated 60 to 70% of Commodore 64 software. Over 35% of SSI's 1986 sales were for the C64, ten points higher than for the Apple II. Everything was great for Commodore but the industry was moving forward and by the year 1988, PC compatible computers were stated to be the largest and fastest-growing home entertainment systems pushing C64 on to second place. Also, Nintendo’s gaming system has started to take hold in the world with amazing 7 million systems sold in 1988 only. By the year 1991, many developers exited the gaming market for Commodore 64 home computer system and its popularity started to fall due to lack of software and not so many hardware changes. Commodore announced that the C64 would be finally discontinued in 1995. However, only one month later in April 1994, the company filed for bankruptcy. When Commodore went bankrupt, all production on their inventory, including the C64, was discontinued, thus ending the C64's 11 and a half year production.

Legendary titles

The history of Commodore 64 is interesting ones and I believe that it has done much for computers in general, yes it ran 11 years and that seems like a small-time, but remember that it was 11 years of C64 alone, there were other computers released by the company but none except arguably AMIGA 500 has not reached that much popularity as Commodore 64. That being said the system has left some of the great titles in its catalog that are great to be played even today and have been classic games on other platforms, even on PC itself. That being said I am giving you the top 100 games for Commodore 64:

1. Zak McKracken and the Alien Mindbenders
2. Pirates!
3. Maniac Mansion
4. IK+
5. Bubble Booble
6. Turrican II: The Final Fight
7. Last Ninja 2
8. Space Rogue
9. Ultima IV: Quest of the Avatar
10. Archon: The Light and the Dark
11. Turrican
12. Wasteland
13. Defender of the Crown
14. Elite
15. Ultima V: Warriors of Destiny
16. Laser Squad
17. Prince of Persia
18. Impossible Mission
19. U.L.E.
20. Pool of Radiance
21. Bruce Lee
22. Paradroid
23. Project Stealth Fighter
24. Curse of the Azure Bonds
25. Ultima III: Exodus
26. Legacy of the Ancients
27. Winter Games
28. Leaderboard Golf
29. Supremacy
30. Airborne Ranger
31. Exile
32. Last Ninja, The
33. World Class Leader Board
34. MicroProse Soccer
35. Project Firestart
36. Boulder Dash
37. Summer Games 2
38. Great Giana Sisters, The
39. Neuromancer
40. Mad Doctor
41. Mail Order Monsters
42. Zork I: The Great Underground Empire
43. Buck Rogers: Countdown to Doomsday
44. Katakis
45. Bard's Tale, The: Tales of the Unknown
46. WIzball
47. Times of Lore
48. Emlyn Hughes International Soccer
49. Ultimate Wizard
50. Alternate Reality: The Dungeon
51. World Games
52. Leaderboard Executive
53. California Games
54. Samurai Warrior: The Battles of Usagi Yojimbo
55. Summer Games
56. Creatures 2: Torture Trouble
57. Gunship
58. Space Taxi
59. International Karate
60. Silent Service
61. Bard's Tale III, The: Thief of Fate
62. Seven Cities of Gold
63. Armalyte
64. Raid on Bungeling Bay
65. Alter Ego: Male Version
66. Enforcer: Fullmetal Megablaster
67. Detective Game, The
68. Creatures
69. Skate or Die!
70. Heart of Africa
71. E.R.O. - Helicopter Emergency Rescue Operation
72. Way of the Exploding Fist, The
73. Stunt Car Racer
74. Wizard of Wor
75. Bard's Tale II, The: The Destiny Knight
76. Mayhem in Monsterland
77. Train, The: Escape to Normandy
78. Jumpman
79. Champions of Krynn
80. Pitstop II
81. Barry McGuigan World Championship Boxing
82. Montezuma's Revenge
83. Boulder Dash II: Rockford's Revenge
84. Spy vs Spy
85. Mercenary: Escape from Targ
86. Midnight Resistance
87. Lords of Midnight
88. Lode Runner
89. Castles of Doctor Creep, The
90. Boulder Dash Construction Kit
91. Buggy Boy
92. Racing Destruction Set
93. Dino Eggs
94. Realm of Impossibility
95. Rainbow Islands
96. Beach-Head II: The Dictator Strikes Back
97. Barbarian: The Ultimate Warrior
98. Grand Prix Circuit
99. Head Over Heels
100. Sentinel, The

Commodore 64 emulator and game ROMs

Commodore 64 might be in the past but its legacy still lives on even today through emulators and ROMs for emulators. You can even purchase one in working condition if you want and relive the full experience as it once was. If you are not keen on spending money for reliving and checking games or software of C64 here are some links to help you to at least experience part of it completely free. Commodore 64 Emulator C64 Game ROMs

Conclusion

It is without a doubt that the C64 home system has made a great mark on home computers echoing even today and I am very grateful that I have been part of it as a kid. Sometimes today I will still spin some old classic via emulator just for nostalgia and enjoy its simplicity. Thank you for reading the article and I hope to see you soon again.

A copy of Windows gets into a grace period when it is installed on a computer which means that you can use your Windows computer without any constraints on its feature. However, if you suddenly encounter an error code 0xC004F009 then this means that the grace period has already expired. In such cases, you will see the following error message on your screen:

“Error Code 0xC004F009, The Software Licensing Service reported that the grace period expired.”

One of the possible causes of this error is that it could be that the grace period has already expired way before the system was activated which is a result of which the system is in the Notifications state at this moment. The error code 0xC004F009 has something to do with MAK-enabled computers in an enterprise when it comes to Volume Licensing. One of the reasons that this error pops up is due to the possibility that the computer was not activated yet even when it was already connected to the Enterprise. Another most likely cause of the error is when the system was never connected with the Enterprise at all and the given grace period has expired before your computer system is activated. Whatever the real cause of this error, this post will guide you in fixing it. Just refer to the instructions given below to fix it.

Option 1 – Try activating Windows using the command-line tool

• First, you need to obtain your MAK key from the IT administrator.
• Once you have it, tap the Win + R keys on your keyboard and then type “cmd” in the field and hit Enter to open an elevated Command Prompt.
• After that, type this command and hit Enter to install the product key or replace the existing one: Slmgr.vbs –ipk <your mak key>
• Next, type another command and hit Enter: slmgr.vbs –ato
• Once you’ve executed the given commands, Windows should be activated after it connects to Microsoft servers and then gives it some time and try to check if error code 0xC004F009 is now fixed or not.

Option 2 – Try activating Windows using your mobile phone

Activating Windows 10 can also be done using your phone. Just note that you have to call Microsoft to do so.

• In the Start Search box, type in “Slui 4” and tap Enter.
• Next, select your country and click on Next.
• Keep the window open and call the toll-free number of the country you’re from.
• Afterward, a confirmation ID should be given by the automated system which you must take a note of.
• Finally, in the box on the window, type in the confirmation ID and click on the Activate button. That should do it.

Option 3 – Try to prolong the grace period

On the other hand, it is also possible for you to prolong the grace period but you might have to get another genuine Windows key for that. Before you proceed, you need to create a System Restore point first afterwards, refer to the steps given below to increase the grace period of the Software Licensing Service on your Windows 10 computer.

• Tap the Win + R keys to open the Run dialog box and type “Regedit” in the field then hit Enter to open the Registry Editor.
• After that, navigate to this registry key: HKEY_LOCAL_MACHINESOFTWAREMicrosoftWindowsCurrentVersionSetupOOBEmediabootinstall
• Next, change the value of the “mediabootinstall” key to “0”.
• Now open Command Prompt with admin privileges and then type this command and hit Enter: slmgr –rearm
• The command you just entered will add another grace period to your system activation. After that, you have to obtain a new key and then activate Windows.

Option 4 – Try running the Windows 10 Activation Troubleshooter

You can also try to run the Windows 10 Activation troubleshooter to help resolve the error code 0xC004F009.

• Go to Settings and then select Activation.
• After that, click on the Windows Activation and then troubleshoot. This will help you address most of the commonly found activation issues in Windows devices.