This website uses cookies

We use cookies to personalize content and ads, to provide social media features and to analyse our traffic. We also share information about your use of our site with our social media, advertising and analytics partners who may combine it with other information that you've provided to them or that they've collected from your use of their services. Please read more at our privacy policy page.

The Windows Club

Windows 7 upgrade fails and goes in a reboot loop

If your Windows 7 upgrade has failed with message “The upgrade was not successful” and your computer reboots repeatedly, then this article may help you troubleshoot the issue.

Windows upgrade was not successful

When you try to upgrade a computer from Windows Vista to Windows 7, the upgrade fails and you receive the following error message:

However, when the computer restarts, it does not roll back to Windows Vista. 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 to Windows Vista, you will have to take additional steps to avoid the problem before you upgrade to Windows 7.

For a detailed how-to visit KB978421.

See this post if your computer restarts automatically without warning.