How the WIN10 system cleans up old system backup files Windows.old

A lot of users through win7/win8/win8.1 upgrade to the latest WIN10 system, and the use of upgraded installation WIN10 will be left in the C disk Windows.old backup, many users to delete the way to find Windows.old can not be deleted, Prompt for insufficient privileges requires system permission to operate, so how do we handle it?

In fact, we do not need to delete this, the same in the WIN10 system with the Disk Cleanup tool, the use of cleaning tools to smooth out some of the old files, operating methods are as follows.

1, open "My Computer" (this computer) into the hard drive, find C disk

2, the mouse right click "C Disk"--In the pop-up menu, select "Properties"

3, select "Disk Cleanup", then will be scanned, patiently wait a few minutes

4, Scan complete, select "Clean System Files", the same will be the system scan, and then patiently wait a few minutes

5, after the scan is completed, in the pop-up window, find "Previous Windows installation", this item before the √, then determine clean-up.

6, this step waiting may be longer, depending on the size of the backup file, time will be different, patiently waiting again. When prompted to complete, and then enter the C disk, you will find that the Windows.old file is missing, or become a 0KB

The above is about alternative methods to deal with the entire content of Windows.old documents, I hope you can enjoy.