Hello, I have Windows Server 2016 TP. I am trying to delete Windows.old Folder. It gives an error that I need to change Permissions. I went into Properties and gave all Users Full Control. After trying to Delete it gives the error I don't have Permission. After going into Windows.old and trying to change the Folders Permissions I get the error Access is Denied. I have searched for a fix but could not find it. How do I delete Windows.old?

Open the command prompt as an administrator

Try the following command:

RD /S /Q %SystemDrive%\windows.old

Thanks for the reply. I booted into my other partition (Windows 10) and ran Disk Cleanup. That worked.  

• Marked as answer by mike98765 3 hours 26 minutes ago