I just installed Win8, so I'm glad To summarize the small puzzles in the use of win7-the built-in backup function of win7: window. (xx) Old, confused me for a long time. The content in it is the same as that in the window folder. It stores the backup file that was left when Windows 7 was installed for the first time, it's not very useful and still occupies resources (more than 2 GB! What should I do? Delete byte ~~)
Okay, it's not a nonsense. Direct topic:
1. Press win on the keyboard: Enter "Disk Cleanup" in "search programs and files "!
2. If you find the "Disk Cleanup" program, click to enter
3. All junk files on drive C will be searched in "files to be deleted.
4. Select the target c-drive spam file, which contains the window. old file. Now, you should be happy !! Click OK. OK! Take a cup of coffee and check it out. It will pop up and delete the file that worries you about white hair.
The above is a little experience I have used, which is very useful. Most of the networks are hydrological, which is of little use. If you like it, try it out. Thank you.