Not without doing a complete reinstall of your previous version of Windows.Īnd, if you have an OEM copy (the copy that came on it when you bought your PC), you might end up having to purchase a retail copy of the previous version. I am here to let you know that if you do that and decide you want to go back – you can’t. Don’t delete Windows.old if you want to revert from Windows 10 to a previous version in the first 30 days
