How to Fix Product Key Error 0x800F0805 when Installing Windows on Windows 10

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  1. Download and install the repair tool here.
  2. Let it scan your computer.
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If you get error code 0x800f0805 during activation when you upgrade Windows to a new version, such as Professional to Enterprise or Home to Professional, this article will help you. You may also get this error when you upgrade Windows. We will let you know the best possible solution to fix the problem.

Depending on the situation in which you get this error – Error 0x800f0805 – follow the guidelines below to fix it. If the activation problem is easy to solve, the update error can be difficult to deal with.

What causes the error 0x800F0805?

This error can indicate that no version has been detected, so the update cannot take place. This problem may be caused by an error while transferring the update to your computer. If there is a problem on the server, you may notice a problem even if your device is working fine.

Unfortunately, damaged or corrupted Windows files are also the cause of this problem. Update errors are the most common, and since there are many, you can also find various reports about them. It’s helpful if the problem has a hint code so you can figure out what happened.

How to resolve the error 0x800F0805?

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sfc-command
System file checker

  1. Open a command prompt or PowerShell as an administrator.
  2. Type DISM.exe /Online /Cleanup-image /Restorehealth and press Enter. This may take a few minutes.
  3. When it finishes, type sfc /scannow and press Enter.

Restart

  1. The second thing to do, if you haven’t already done so, is to restart your computer.
  2. Try updating it or turning it back on.

Removal of the SoftwareDistribution & Catroot Folders

  1. Open the extended command prompt and type the following two lines, then press Enter each time:
    net start wuauserv
    net start bits
  2. Each command will take a few seconds, so wait for messages indicating that the services have been successfully stopped. Leave the command line open for now.
  3. Navigate to C: WindowsSoftwareDistribution and open the folder. Press CTRL + A to highlight all files and the folder, then press the Delete key. We want to delete all the files in the SoftwareDistribution folder. We do not want to delete the folder itself.
  4. Restarting it will start the two services we stopped. However, if you do not want to restart, open the command line again and type the following two lines, then press Enter each time:
    net start wuauserv
    net start bits
  5. Then delete the Catroot or Catroot2 folders.



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Frequently Asked Questions

  1. Troubleshoot Windows Update.
  2. Run the DISM and SFC tools.
  3. Empty or delete the Windows Update download folder.
  4. Restart the Windows Update services.

Error code 0x800f0805 is a Windows Update error that occurs when you try to download and install an operating system feature update. Windows Update is an integral part of Microsoft Windows. Error 0x800f0805 does not allow users to update the operating system.

However, you can simply click the "I don't have a product key" link at the bottom of the window, and Windows will allow you to continue with the installation process. You may also be prompted to enter your product key later in the process - if so, look for a similar little link to skip that screen.

Select the Start button, then Settings -> Update and Security -> Activation . Select Change Product Key, then enter the 25-digit product key for Windows 10 Pro. Select Next to start the upgrade to Windows 10 Pro.

Related posts:
  1. The product key entered does not match any of the Windows images available for installation
  2. Check the activation status of Windows 10, activate it or change the product key
  3. Windows 10 cannot be enabled. Product key locked.
  4. How to Fix: This product key cannot be used to extend the use of this product in Visual Studio
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