So, you’ll need to elevate it by clicking Clean up system files button in the Disk Cleanup window.Īlternately, you can run it as administrator from the Start menu. To delete the Windows.old folder using Disk Cleanup, follow these steps: Method 1: How to delete Windows.old folder using Disk Cleanup Using one of the following methods to delete the Windows.old folder on your system drive. Typically, the amount of disk space freed up might be anywhere between 14 GB to 25 GB depending upon the bitness of your Windows installation and the number of programs installed on the system drive.
Delete Windows.old folder using Storage Settings.Delete Windows.old folder using Disk Cleanup.Clearing the Windows.old (Previous Windows versions) folder in Windows 10