Uninstalling Windows 8 and restoring Windows 7 is not an easy process but not impossible either. Follow the step-by-step guide in this Pureinfotech article to reset Windows 7.

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How to uninstall Windows 8 and go back to Windows 7 without dual boot

As many of you know, uninstalling Windows 8 Developer Preview is not currently supported by Microsoft. However, if you are not afraid, you can manually restore Windows 7 after installing Windows 8. However, I must warn you that there must be a good reason why uninstalling Windows 8 is not supported yet. This step-by-step process that I am about to describe worked for me and I hope it works for anyone who needs help. Just proceed at your own risk and with caution.

In my opinion, Microsoft should have made it clear to the end user that they cannot go back to the previous version of Windows through a simple dialog box when they start the setup for the upgrade. However, if you have been following all the presentations on the Windows 8 Developer Preview, you will have noticed that Microsoft has pointed out many, many times that you cannot go back to a previous version of Windows. If you want to test the new operating system, you should try it on a spare computer to experience the full power of the operating system, or you should use a virtual machine. Also, the company has pointed out at the bottom of the download page that you cannot uninstall the Windows Developer Preview.

However, if you upgraded from Windows 7 to the Windows 8 Developer Preview instead of a custom installation and now want to go back, know that all is not lost. This tutorial will walk you through the step-by-step process of restoring Windows 7.