Method to delete Win10 system Windows.old file

1, open “ my computer & rdquo; (this computer) into the hard drive, find the C drive;
2, right click on the mouse & ldquo; C drive & rdquo; & mdash; & mdash; in the pop-up menu , select <;Properties>;
3, select “Disk Cleanup", then scan, wait patiently for a few minutes;
4, scan completed, select “clean system files ”, the same Will perform a system scan, and then wait patiently for a few minutes;
5, after the scan is completed, in the pop-up window, find the "previous windows installation", put this item in front of √, then determine to clean;
6, this step may wait longer, depending on the size of the backup file, the time will be different, wait patiently. After the prompt is completed, enter the C drive, you will find that the WINDOWS.OLD file is gone, or become 0KB.