If your Windows Upgrade attempt has failed and you get an error message This version of Windows could not be installed, Your previous version of Windows has been restored, and you can continue to use it and the PC on subsequent reboot/s keeps showing you the same message, then this post may help you.
PC keeps rebooting after upgrading Windows
In such cases, you may want to try the following:
1. Select Windows OS with the existing version name instead of the default Windows setup when you see the boot entry menu.
2. Insert the Windows Installation Media of the existing version into the drive and exit the Windows Setup when its launched
3. Click Start > All Programs > Accessories > Right click the Command Prompt icon > Click Run as Administrator.
4. Type the following command at a command prompt and hit ENTER
Drive:\boot\Bootsect.exe /NT60 All
In this command, Drive is the drive where the Windows (existing) installation media is located.
5. Restart your PC.
This should help!
Windows upgrade was not successful
If your Windows upgrade has failed with message “The upgrade was not successful” and your computer reboots repeatedly, then this article may help you troubleshoot the issue.
When you try to upgrade a computer, the upgrade fails and you receive the following error message:
- The upgrade was not successful.
- Your previous version of windows is being restored.
- Do not restart your computer during this time.
However, when the computer restarts, it does not roll back to earlier version. The upgrade process starts again and then fails with the same error message. This issue occurs repeatedly and the upgrade process is stuck in an endless reboot loop.
This issue may occur because the computer contains one or more shell folders (Documents, Pictures, Music, and so on) that are redirected to locations within their own paths.
To resolve the endless reboots, you will have to access the Windows Recovery environment, locate the duplicate folders, and then move the duplicate folders to a temporary location. After the system successfully rolls back, you will have to take additional steps to avoid the problem before you upgrade to Windows 7.
See this post if your computer restarts automatically without warning.