

Press “Win + X” (in any window) and choose Command Prompt (Admin) from the menu that pops up. If you want to keep a specific installation and remove the rest, you can do so by deleting the folders individually via Command Prompt.

One possible drawback of the above mentioned Disk Clean-up process is that it will remove all the previous installations at once. In case you have a Windows.old folder on your C drive when a new one is created by the OS, the old folder may be renamed to “ Windows.old something.” The latest previous installation would be in Windows.old folder only. Removing Windows.old Folder via Command Prompt Once the Disk Cleanup finishes, the C:\Windows.Old folder would be deleted. Select “ Previous Windows Installation(s)” and click on “ OK.” Disk Clean-up again calculates space occupied by System files that can be deleted. If the UAC window pops up, choose “ Yes”. The wizard then shows the various folders that can be emptied to free space on your drive. Windows calculates the amount of space that you can free on C drive. The Properties window shows the used and free space on the C drive.
