1, don't install any non-system software on the system disk, such as OFFICE, PS, QQ, games, etc., and don't put it on the C disk.
2. Turn off system restore! This is a very important point. System restore will slowly eat up your C disk space. After a long time, it will eat up all the remaining space, many of which are as big as several GB, and you can't find his shadow on the C drive. This is also the main reason why many people say that the total size and occupied space of all files on drive C are different. This setting can be found in the computer properties.
3, often clean up the C disk, remove junk files.
4. Disable the recycle bin. By default, the Recycle Bin will occupy hundreds of MB of disk space. Of course, your files will be directly and completely deleted after closing. This item is optional.
5. Move IE temporary files. Move the folder for IE temporary files to a disk with rich space, and you can find hundreds of MB of space, and the size can be set by yourself.
6. Use optimizer to clean registry, DLL, etc. It is entirely to improve the system speed and has little impact on disk space.