It gets smaller because there are many temporary slow-motion files on disk C, and you play games online. . . It will take up space on drive C.

Cleaning method

1. Delete the software except the system software and reinstall it on disk D;

2. Use software optimization systems such as optimization masters to delete junk files;

3. Files and folders marked with $ in the 3.windows folder, and everything in the prefetched folder can be safely deleted to ensure that there is no problem.

4 Close the system restore