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We Couldn't Install Windows Technical Preview 0x80070070 - 0x20005 -- What is it?

Some Windows users have been experiencing errors in an attempt to upgrade to Windows 10 OS. This includes the “We Couldn’t Install Windows Technical Preview 0x80070070 – 0x20005” error code. If you’re one of the many users who’ve encountered this error, you might want to check the available space on your device. Error code 0x80070070 – 0x20005 occurs when you do not have the required space to be able to install the upgrade.

Solution

Error Causes

Just like the other alternatives of error code 0x80070070 – 0x20005 such as 0x80070070 – 0x50011, 0x80070070 – 0x50012, and 0x80070070 – 0x60000, We Couldn't Install Windows Technical Preview 0x80070070 - 0x20005 is most likely caused by the following:

• Insufficient disk space in your computer
• Incomplete installation or improper deletion of applications
• The device is infected with virus or malware

Further Information and Manual Repair

In order to upgrade to Windows 10, you need to have at least 40 to 50 GB of free space in your device. Thus, you need to free up some space in order to successfully upgrade your system to Windows 10. See below for the manual methods you can employ to solve your problem.

NOTE: It would be best to seek help from an experienced technician if you are not confident enough to perform the manual methods yourself or you can alternatively make use of an automated tool.

Method One: Clean Up Your Device

1. Click Start then browse Afterwards, click on This PC.
2. Right-click on Local Disk (C:) then choose
3. Under the General tab, click on Disk Cleanup.
4. Once the Disk Cleanup window appears, check all items you want to clear down, making sure that the recycle bin is empty and clear any temp files, as well as error logs. Click OK once you’re done.
5. Repeating the same process above, clear down your system files as well to ensure that the old OS files from your previous system are taken down by clicking on Clean up system files in the Disk Cleanup window.

 Method Two: Uninstall Unused Applications

Sometimes, there are unused applications just lying around your device. This may take up your needed space from your device for a system upgrade. Uninstalling these applications can make space that will eventually elude error code 0x80070070 – 0x20005 along with its alternatives – code 0x80070070 – 0x50011, code 0x80070070 – 0x50012, and code 0x80070070 – 0x60000.

1. Open the Control Panel then select Programs and Features.
2. Check on unused applications on your device
3. Right-click on the unused application then select

 Method Three: Remove or Archive Files

If there are tons of images, media, videos, or documents that you rarely use but will still be needing in the future, you can move these files to another drive where Windows 10 will not be installed on.

If there are no secondary drives in your device, consider using a USB Drive or external hard disk. Another option you can do is making use of cloud storage programs like One Drive or Google Drive. In this way, you’ll still have access to these files even if it’s not in a physical location while making larger space in your device.

Method Four: Scan Your Device For Viruses

Most Windows users download applications or software regularly. These applications or software might come from unsafe sites where you might have accidentally downloaded a virus or malware along with the legit application or software you intended to download.

With that said, it is highly recommended to download and install in your device a reliable and powerful antivirus. Using an antivirus, you can now perform an overall scan of your device’s system. Once you’re able to detect and remove any suspected virus or malware, you’ll now be able to get rid of the error code 0x80070070 – 0x20005. After solving the issue, you can now resume upgrading to Windows 10.

Method Five: Download An Automated Tool

Can’t seem to put up with the long and technical manual repair process? You can still fix this error by downloading and installing a powerful automated tool that will surely get the job done in a jiffy!

If you have received a BSOD error message that says, “Tcpip.sys”, read on as this post will show you how you can fix the problem. The “Tcpip.sys” means Transmission Control Protocol over Internet Protocol. It is a library of a set of rules that are used to interconnect different devices all over the internet. The Tcpip.sys file is a driver and if a BSOD error message includes this one, it could only mean that the driver file is corrupted or incompatible with your system or there are some conflicting programs installed in your computer. To fix this error, you can try the following workarounds. Make sure to carefully follow each one of them.

Option 1 – Check for conflicting or incompatible programs by putting your PC in a Clean Boot state

As mentioned, the “tcpip.sys” BSOD error might be caused by some problematic programs that clash with your existing operating system. Several users reported that numerous programs that are supposedly designed to enhance computer performance are causing conflict in the system instead. To identify which program is causing the problem, you need to put your computer in a Clean Boot State. To do so, follow the steps below.

• 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 putting your PC in a Clean Boot State, try creating a system restore point and see if the problem still occurs. Clean Boot troubleshooting is designed to help you isolate the problem. For you to execute a clean boot troubleshooting, you must do a couple of actions (the steps are given above) and then restart your PC after every action. You might have to disable one third-party app after the other to really isolate the issue. And once you’ve narrowed down the problem, you can either disable the third-party app that’s causing the problem or remove it. Note that you must switch your PC back into the Normal Startup mode after you’re done troubleshooting the problem. Here’s how you can do it:

• From the “Start” menu, go to System Configuration.
• After that, switch to the General tab and click the option for “Normal Startup”.
• Next, go to the Services tab and clear the checkbox for “Hide all Microsoft services”.
• Then find and click “Enable all” and if prompted, you have to confirm.
• Afterward, go to the Task Manager and enable all the Startup programs and confirm the action.
• Restart your PC when prompted.

Option 2 – Disabling Antivirus Software

There are cases when the “tcpip.sys” BSOD error is caused by the antivirus program installed in your computer that’s blocking some essential operations. Because of this, the operating system fails which throws up the BSOD error. As you know, the antivirus program is designed to protect the computer and monitor every action in the system. However, there are instances when the antivirus program gives false positives and shuts down some modules even if it’s harmless. So this could be the case for the “tcpip.sys” error. To verify if the problem is indeed caused by the antivirus program in your computer, you need to temporarily disable it. After you’ve disabled it, restart your PC and then check if the problem’s fixed or not.

Option 3 – Try to update all your Drivers

From time to time, drivers get corrupted or outdated so it’s no surprise that they conflict with the operating system and cause errors like the “tcpip.sys” BSOD error. To fix the problem, you need to update all your drivers especially the network driver since the “tcpip.sys” error is closely related to this driver. Follow the steps below to update your drivers.

• Tap the Win + R keys to launch Run.
• Type in devmgmt.msc into the box and tap Enter or click OK to open the Device Manager.
• After that, a list of device drivers will be displayed. If you see a red or yellow sign that shows up against the driver, right-click on the driver’s name and select “Update Driver Software” or “Uninstall”. And if you find any “Unknown device”, you need to update it as well.
• Select the “Search automatically for updated driver software” option and then follow the instructions to complete the process.
• Restart your PC.

Note: You also have the option to go directly to the website of your graphics card manufacturer and check if there’s a new update – if there is, download it. After that, you could also check if there’s a new update of the game you’re getting the issue of the black bar.

If you encounter the “Diskpart failed to clear disk attributes” error when you try to change the read-only state of a storage device using the Diskpart application and the request is denied, worry not for this post will give you a couple of fixes to resolve the problem. As you know, Diskpart is used for resolving read-only storage devices by changing their attribute via the command line. So if it is not able to change the attribute of the storage device, then you will most likely encounter an error such as this one. This kind of error is not uncommon and as long as there are no damaged physical attributes, you can resolve it right away. There are tons of reasons why you’re getting this error while using Diskpart, it could be that the storage device has a physical write-protected switch or the disk is hidden or has bad sectors. It could also be because the storage drive might be in RAW format or that you are running the Diskpart application without admin privileges. Whatever the cause may be, here are some options you can try to fix the problem but before you proceed, make sure that you log on to your PC as an administrator.

Option 1 – Check if there is a physical switch on the storage device

There are some USB devices and SD card readers that have a write-protected physical switch that disables all the writable options on the storage device and so if it is turned on, Diskpart won’t be able to change the disk attribute to writable. To check, simply look for the physical switch on both sides of the device and once you found it, make sure that it is toggled off and then plug the storage device back in then try running Diskpart once again.

Option 2 – Modify the WriteProtected key in the Registry Editor

Before you proceed, you have to create a System Restore Point first.

• Tap the Win + R keys to open Run and type “Regedit” in the field and hit Enter to open the Registry Editor.
• Next, navigate to the following path:

HKEY_LOCAL_MACHINESYSTEMCurrentControlSetControlStorageDevicePolicies

• After that, look for the “WriteProtect” registry entry which is located on the left side of the window, and then double click on it.
• Change its value to “0” and click OK to save the changes made and exit the Registry Editor.

Option 3 – Run CHKDSK to check the drive for errors

When it comes to some issues concerning the hard drive or removable devices, there is a utility in Windows that might help which is called “chkdsk”. This error check utility can help with several issues in the system including the “Diskpart failed to clear disk attributes” error.

• Tap the Win + S keys to open the Search box.
• Then type “command prompt” in the field and from the search results that appear, right-click on Command Prompt and select “Run as administrator”.
• After opening an elevated command prompt, copy and paste the following command and hit Enter:

CHKDSK [volume [[path] filename]] [/F] [/V] [/R] [/X] [/C] [: size]]

Note: In the command given above, “[/F]” will try to fix the system errors while “[/R]” will be the one to fix the bad sectors.

• Now if you are prompted to run CHKDSK after your reboot your PC, just tap Y and reboot your PC.
• If CHKDSK is not able to find any errors, tap the Win + E keys and navigate the access window. From there, right-click on the concerned drive and click on Properties.
• After opening Properties, click on the tab Tools and then click on the “Check” button under the Error-checking section.
• Wait until the process is completed and then restart your computer.

Option 4 – Clear the attributes on RAW

• Tap the Win + S keys then type “diskpart” in the field.
• Click the Diskpart application and if a User Account Control dialog box pops up, click Yes to proceed.
• After opening an elevated Command Prompt, type in the commands listed below and make sure to tap Enter right after you key in one command after the other.
  • list volume
  • select volume ‘n’ (In this command, you have to replace ‘n’ with the volume number of the drive)
  • format fs=fat32 quick (In this command you also have the flexibility to change the format to ‘ntfs’ or ‘exfat’)
• After executing the commands given, unplug the removable storage device and wait for a couple of seconds and then plug it back in.
• Now try any normal write operations and see if the error no longer appears.

Option 5 – Try checking the hardware components

On the other hand, it is also possible that the issue has something to do with a hardware problem and so you need to check the hardware components on your computer to determine that.

Corefoundation.dll Error - What is it?

Corefoundation.dll error is a DLL error code associated with Apple software such as iTunes, MobileMe, QuickTime and etc. To understand this error better, first you need to understand what corefoundation.dll file is. Corefoundation.dll is a Dynamic Link Library file that is used by Apple software products. This file is created by Apple computer Inc and is designed to help open up some of the media files that you might have on your PC. DLLs help promote modularization of code, efficient memory usage, code reuse and reduced disk space allowing the operating system and the programs to load and run faster and take less disk space on the computer.

Error Messages

This error pops on the screen when there is an issue related to Apple software products on your system. Corefoundation.dll error is displayed on the computer screen in any one of the following formats:

“The program can not start because corefoundation.dll is missing from your computer. Try reinstalling the program to fix this problem”. "This application has failed to start because CoreFoundation.dll was not found. Re-installing the application may fix this problem." “The procedure entry point_CFBundleCopyFileTypeForFileData could not be located in the dynamic link library corefoundation.dll.” "MobileMe Control Panel cannot continue as Apple Application Support is missing or outdated. Please uninstall and reinstall the latest version of iTunes and MobileMe Control Panel to fix this issue.”

Though this error code is not fatal but if it is not fixed immediately it will hamper your ability to load and run Apple programs on your system.

Solution

Error Causes

Corefoundation.dll error can be triggered due to several reasons. Here are some of the most common corefoundation.dll error causes:

• Outdated PC drivers
• Viral infection
• Damaged Windows registry files
• Corrupted corefoundation.dll file
• Missing corefoundation.dll file
• Incorrectly installed third-party software

Further Information and Manual Repair

To fix this issue on your computer here are some of the best, easy and quick do it yourself methods that you can try:

Method 1: Download the Original Corefoundation.dll File

If the underlying reason for corefoundation.dll error is file corruption or it goes missing, then the best way to resolve is to download the original corefoundation.dll file. Once you download it, paste it to its exact location. DLL files are normally located in the following location C:\Windows\System32. Once you paste it, register the file by typing ‘regsvr corefoundation.dll’ at the command prompt. When the process is complete, restart your PC to activate changes. Alternatively, you can uninstall and re-install any Apple Software you may have on your Windows Computer. To do that, Open the Control Panel, navigate to "Install/Uninstall a Program", search for Apple software, and uninstall them.

Method 2: Update Window Drivers

If the error code is related to outdated drivers, then it is recommended that you update them promptly to resolve the corefoundation.dll error on your PC. This can be done by using a driver update wizard from within Device Manager. The driver update wizard walks you through the entire drive update process, making updating a hassle-free process.

Method 3: Download Restoro

If the error still persists, then try method 3. Sometimes the cause of corefoundation.dll can be viral infection or registry issues.  Viruses may enter your PC unknowingly through phishing emails and downloads which can corrupt and damage your dll files. Also, if you don’t clean your registry frequently, unnecessary and obsolete files may accumulate in the registry like cookies, junk files, internet history and temporary files. These files take up a lot of disk space corrupt DLL files and lead to disk fragmentation. Regardless of what the issue is, Restoro is your one-stop PC Fixer. It is a multi-functional and user-friendly repair tool embedded with 6 different scanners including a registry cleaner and an antivirus. It scans and removes all types of viruses and cleans and restores the registry too. Click here to download Restoro and resolve the corefoundation.dll error today!

There are instances when you might encounter an error that says, “Something went wrong, We couldn’t start your program” when you open any Office program. This could be due to an issue with the Office file and any Office app you open throws the same error message. This applies to Office 2019/2016, Office 365 Home, Office for Business as well as Business editions. In this post, you will be guided in what you can do to resolve this error. There are several potential fixes for this error, you might only have to restart your computer or you may have to repair Office from Apps and Features or you could also uninstall and install it back again. For more details, follow each one of the provided options below.

Option 1 – Restart your computer

You might be unable to launch any Office app due to some background process that got stuck or there might be some glitch in the system. Thus, the first thing you can do to resolve the error is simply restarting your computer. Once you’ve restarted your computer, open the Office app again or you could also try to sign in back with your Microsoft account that’s connected to Office. If you’re not quite sure which account you were using, you can follow these steps:

• Open any Office app.
• Then click on File and look for your name located in the top-right portion.
• Now click on it. This will display the email or Microsoft account that’s related to Office.

Option 2 – Try repairing Office from Apps and Features

Since Windows 10 offers some repair features that could replace some of the core files with the original files, you can take advantage of such a feature to fix the “Something went wrong, We couldn’t start your program” error when opening any Office app.

• Open Windows settings and click the Apps and Features option.
• Next, scroll down until you see the Microsoft Office installation option. Select it and click on Modify.
• This will open a window and from there, select Quick Repair or Online Repair and click on the Repair button.

Note: When you choose to repair, you might be given two options which depend on how Microsoft Office was installed. For instance, it was installed via Web Installer or Offline Installer (MSI-based). In Web Installer, select Online Repair > Repair when you’re prompted on how you would like to repair Office. While in MSI-based, you have to select Repair under “Change your installation” and then click on Continue. The repair process makes sure that the app data remains untouched.

Option 3 – Try to uninstall and reinstall Office

If neither of the two given options above worked, then you might want to uninstall Office and reinstall it. All you have to do is download the Microsoft Office Uninstall tool from the official site of Microsoft and run it. This will remove any incomplete Office installation as well as unwanted files. It will also get rid of all the Office apps and settings on your computer.

Like in Windows 10, Windows 11 will also support God mode to be enabled and used. For those readers that do know what God mode is, let me explain it in simple terms. God mode is the icon on the desktop that once clicked will open and let you adjust every option in the control panel and some hidden features for Windows inside one application. There are a lot of advantages to having this one-click fast access to features, especially if you are a power user. Luckily creating such an awesome icon and enabling God mode is very easy to accomplish, all you have to do is:

1. Create a new folder where you want to have the God mode icon
2. Rename folder exactly: {ED7BA470-8E54-465E-825C-99712043E01C}
3. Enjoy God mode

As you can see creating and accessing all settings at your fingertips is much easier than most people think. Enjoy your ultimate access to Windows 11 features and if you wish you can drag and drop sections from it into the desktop or anywhere for easy access to that specific topic.

Kernel32.dll Error - What is it?

To understand Kernel32.dll error properly, here’s what you need to know first: in the Windows operating system, the system32 directory plays a vital role. Inside this directory, there is an element called Kernel32.dll. A DLL (dynamic link library) is a library that contains codes and data that are used by more than one program at the same time. The role of the Kernel32.dll file is to handle memory management and I/O (input and output) operations. Malfunctioning of this file results in a Kernel32.dll error message which leads to program or application failure.

Error Causes

Kernel32.dll files can be attributed to several reasons like:

• Missing or damaged Kernel32.dll files
• Registry corruption
• .Dll files misconfiguration if programs are installed or uninstalled.
• Viral infection or malware attack

It is advisable to repair the Kernel32.dll error immediately to avoid inconvenience and serious computer damages like program lockouts, system failure, freeze, and crash.

Further Information and Manual Repair

All causes for the Kernel32.dll error are linked with the registry. The registry is the major database of your system that stores all the activities you perform on your system. It saves both important data and unnecessary files in the RAM (Random Access Memory) including the junk files, temporary internet files, and obsolete files such as files of the deleted/uninstalled programs. These files accumulate a lot of memory space. It leads to disk fragmentation, data overload, missing and damaged DLL files, and eventually registry corruption. Other reasons for registry issues that trigger Kernel32.dll errors on your system could be malicious software like viruses, adware, and malware. These also corrupt the registry and damaged DLL files.

Kernel32.dll Error Solutions

There are two ways to resolve the Kernel32.dll error on your PC, one is to install two separate tools registry cleaner and an antivirus and run them individually to scan your system and repair it. This option is time-consuming and besides if antivirus software is notorious for slowing down systems. So by downloading a separate antivirus you may have to sacrifice your system’s speed.

As you know, the functioning of the Windows Sandbox feature is supported by various components in the background of the Windows operating system. And the only way for you to enable the Windows Sandbox feature in your computer is through the Turn Windows features on or off utility. This feature will work directly on the basis of Virtualization which is also supported by Hyper-V. However, there are some reports claiming that some computers have the Windows 10 Sandbox item greyed out in the Turn Windows features on or off utility. Thus, in this post, you will be guided on what you can do to resolve such a problem in your Windows 10 computer. In this kind of problem, you should know that this has something to do with the Second Level Address Translation which is one of the important pillars of how the Windows 10 Sandbox feature functions. Thus, if the Second Level Address Translation or SLAT feature in Windows Sandbox is not supported by the CPU of your computer, there is no way for you to use Windows Sandbox on your computer. On the other hand, if SLAT is supported, then there is definitely something you can do to resolve the greyed-out Sandbox item in Windows 10.

To get started, follow the steps provided below.

Step 1: First, you have to boot into the BIOS of your PC. Step 2: After that, make sure that the following options are set to their respective configurations:

• Hyper-V – Enabled
• VM Monitor Mode – Yes
• Virtualization – Enabled
• Second Level Address Translation (VT-d or RVI) – Enabled
• Data Execution Prevention – Enabled

Step 3: Once you’re done, save the configuration and then restart your Windows 10 computer as usual. Step 4: Once your computer has restarted, you should see the same option in the Turn Windows features on or off utility and it should no longer be greyed out. Then you can now enable the feature and follow the onscreen instructions need to use the feature as best as you can.

If your internet suddenly stops working on your Windows 10 computer and you get an error message saying, “Windows is still setting up the class configuration for this device (Code 56)”, then read on as this post will show you what you can do to resolve it. This kind of issue has something to do with the Network Adapter and you can see this error message in the Properties menu of the corresponding Network Adapter under the Device Manager. This kind of issue could be caused by many things. For one, it could be caused by your VPN connection if you are using one or it could also be due to an outdated driver. Whatever the cause may be, here are some suggestions you have to check out to fix the error.

Option 1 – Check your VPN

When you install a virtual machine or VPN software on your computer, a new setup will be added in the Network Connection settings and helps your computer in using that adapter setting each time the VPN is turned on. Assuming that you are using an Ethernet connection but your system is trying to use another adapter or settings, that’s when issues occur and one of them is the “Windows is still setting up the class configuration for this device” error. To fix it, 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 2 – Try to update or rollback or uninstall the Network Adapter drivers

You might also want to update, roll back or disable your Network drivers to fix the “This operation failed as no adapter is in the state permissible for this operation” error.

• Tap the Win + R keys to launch the Run window and then type in the “devmgmt.msc” command and hit Enter to open the Device Manager window.
• Under the Device Manager, you will see a list of drivers. From there, look for the Network Adapters and expand it.
• Then right-click on each one of the Network drivers and depending on your preference, you can either select “Update driver”, “Disable device” or “Uninstall device”.
• After that, restart your PC and see if it helped in fixing the netio.sys Blue Screen error.

Option 3 – Try to run the Network Adapter troubleshooter

To run the Network Troubleshooter, refer to these steps:

• Open the Search bar on your computer and type in “troubleshoot” to open the Troubleshoot settings.
• Next, scroll down and select the “Network Adapter” option from the right pane.
• Then click on the Run Troubleshooter” button.
• After that, your computer will check for any possible errors and will pinpoint the root cause of the problem if possible.
• Restart your computer.

Option 4 – Try to reset the Network

You might perform a Network Reset to resolve the problem if none of the three given options above worked. This will reset the entire network configuration including your IP address. To perform Network Reset, follow these steps:

• Tap the Win + I keys to open Settings.
• From there, go to the Network and Internet section.
• Next, scroll down and look for “Network Reset” under the status pane.
• After that, click on Network Reset and then on Reset now to start resetting the network configuration. Once done, check if it is able to fix the error or not.

Are you trying to update your Windows 11 OS and are receiving a 0x800f0905 error? Do not sweat and do not worry we have a couple of solutions that you can try in order to fix this issue. How this error is tied to various things like misconfigured settings, corrupt system files, and more there is no way to present one simple solution that will solve everything in one click.

Therefore we are presenting a couple of solutions that will fix your issue, it is advisable to follow them as presented since they will go from the most common to the more complex one.

Run the troubleshooter

The most common fix and one that will actually repair things most of the time is simply running the Windows Update troubleshooter.

1. Press ⊞ WINDOWS + I to open the Settings app
2. Click on System on the left
3. Click on Troubleshoot in the right part
4. Click on Other Troubleshooters
5. Find the Windows Update section and click on Run
6. Let troubleshooter finish

Reset Windows update components

If the previous solution did not work we will need to do things manually. Follow the steps as presented in order to reset Windows update components.

1. Press ⊞ WINDOWS + S to open search
2. Type in Terminal
3. Select Run as administrator
4. Click on Yes on the User account control (UAC) pop up
5. Press CTRL + SHIFT + 2 to open Command prompt
6. Inside command prompt type each line of a command followed by ENTER after each line:
   net stop bits
   net stop wuauserv
   Del “%ALLUSERSPROFILE%Application DataMicrosoftNetworkDownloaderqmgr*.dat”
   Ren %Systemroot%\SoftwareDistribution\DataStore DataStore.bak
   Ren %Systemroot%\SoftwareDistribution\Download Download.bak
   Ren %Systemroot%\System32\catroot2 catroot2.bak
   exe sdset bits D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
   sc.exe sdset wuauserv D:(A;;CCLCSWRPWPDTLOCRRC;;;SY)(A;;CCDCLCSWRPWPDTLOCRSDRCWDWO;;;BA)(A;;CCLCSWLOCRRC;;;AU)(A;;CCLCSWRPWPDTLOCRRC;;;PU)
   cd /d %windir%\system32
   regsvr32.exe atl.dll
   regsvr32.exe urlmon.dll
   regsvr32.exe mshtml.dll
   regsvr32.exe shdocvw.dll
   regsvr32.exe browseui.dll
   regsvr32.exe jscript.dll
   regsvr32.exe vbscript.dll
   regsvr32.exe scrrun.dll
   regsvr32.exe msxml.dll
   regsvr32.exe msxml3.dll
   regsvr32.exe msxml6.dll
   regsvr32.exe actxprxy.dll
   regsvr32.exe softpub.dll
   regsvr32.exe wintrust.dll
   regsvr32.exe dssenh.dll
   regsvr32.exe rsaenh.dll
   regsvr32.exe gpkcsp.dll
   regsvr32.exe sccbase.dll
   regsvr32.exe slbcsp.dll
   regsvr32.exe cryptdlg.dll
   regsvr32.exe oleaut32.dll
   regsvr32.exe ole32.dll
   regsvr32.exe shell32.dll
   regsvr32.exe initpki.dll
   regsvr32.exe wuapi.dll
   regsvr32.exe wuaueng.dll
   regsvr32.exe wuaueng1.dll
   regsvr32.exe wucltui.dll
   regsvr32.exe wups.dll
   regsvr32.exe wups2.dll
   regsvr32.exe wuweb.dll
   regsvr32.exe qmgr.dll
   regsvr32.exe qmgrprxy.dll
   regsvr32.exe wucltux.dll
   regsvr32.exe muweb.dll
   regsvr32.exe wuwebv.dll
   netsh winsock reset
   net start bits
   net start wuauserv

Well, that was a lot of typing or copy and pasting line by line followed by ENTER after each one but hopefully, your issue is solved. These provided solutions fixed most users' issues with this error but if for some reason this is not the case for you, move to the next step.

Run the SFC scan

If you are still having 0x800f0905 error after previous attempts do the following:

1. Press ⊞ WINDOWS + S to open search
2. Type in Terminal
3. Select Run as administrator
4. Click on Yes on the User account control (UAC) pop up
5. Press CTRL + SHIFT + 2 to open Command prompt
6. Type in sfc /scannow and press ENTER
7. Wait for the scan to finish
8. Reboot the computer

Perform a system restore

If for any reason previous solutions have not provided you with the solution we will try to fix the issue by performing system restore.

1. Press ⊞ WINDOWS + S to open search
2. In the text box type in Create a restore point
3. Click on the closest match in search results, should be Create a restore point
4. Click on System Restore or on Next if there are no points created
5. Choose to restore a point from the list and click on next
6. Review settings and click on Finish
7. Wait for the process to finish and for the computer to restart

Manually install update

If for any reason Windows still cannot install the update, try installing it manually.

1. Go to Windows 11 update history and find the Knowledge base (KB) number for the latest version
2. Go to the official Microsoft Update Catalog
3. Paste the KB number in the search box and press ENTER
4. Click on DOWNLOAD
5. Double click on the downloaded file to launch the installer
6. Follow on-screen instructions and install the update

Perform Windows 11 reset

If nothing worked, reset your Windows 11 to its factory settings to fully repair and reset the whole operating system.