

Windows.old is regarded as a system file. As long as you’re satisfied with your current Windows system and don’t want to downgrade, and as long as you have saved all your important files from Windows.old, you can go ahead and remove it.ĭetailed steps are shown below, just keep reading. Hence, you may wonder: can I delete Windows.old folder to get spare disk space, and how can I delete Windows.old, just like the one wondering in. Windows.old usually takes 10 GB around disk space, depending on how large your previous Windows installation was. Do I need to keep these, and if not, what's the best way of deleting them? This is probably a silly question, but better safe than sorry.

Each time, creating a Windows.old folder. Let’s start with a question put forwarded in : I'm in the Windows Insider program and have updated Windows 10 several times now. So, what is saved in Windows.old? In particular, you will find the old registry hives in C:\Windows.old\System32\config, and your personal profile files in C:\Windows.old\System32\Users, which includes Cookies, Start Menu, UserData and more. It is regarded as your return ticket to your previous Windows version within 30 days. When you upgrade Windows 7/8/10 to a newer version, your previous Windows installation is moved to a folder named Windows.old. Windows.old is created by Windows Setup and is an archive of your old Windows installation.

