Windows 8 system C disk space is getting smaller how to do? How do I clear space?

Method One, use the system to clean the garbage with the tool

We'll have to turn UAC off first.

1, Win key +x

Then in the pop-up window we click on "Command Prompt (Admin)", which is the previous Windows cmd Command mode Oh.

2, input powercfg-h off

Then on the top we entered the powercfg-h off you will be king to C disk immediately free, your computer memory space becomes larger.

Method two, using 360 security guards to clean up the rubbish

1. In the computer to open 360 security guards After we click on the "Computer cleanup" so that we can scan after the computer will be able to clean the garbage file OH.