Use cmd command to delete files not used by win7 system to expand memory

There are some files that are not used by ordinary users in Win7 system. How can I delete these files and expand the memory of the system? Now Xiaobian teaches you an easy way.

Solution:

Click the Start button, type cmd in the search bar, right click and select "Run as administrator" &

In the dialog box, enter “rd/S/Q c:\\\\WINDOWS.OLD or rd/S/Q $WINDOWS.OLD ”

When prompted to confirm the deleted target WINDOWS.OLD folder, Confirm the input y and press the Enter key.

The above is the way to delete files that are not used in Win7 system. If you don't want to waste Win7 system memory, then delete these files that you can't use.