The reasons are as follows: Apple's system itself brings little garbage, and nothing will be left after uninstalling the program.

Summary:

If you feel that the computer is running a little stuck, or the disk space takes up a lot, you can consider cleaning it up at this time. There is no need to use 360 to clean up every day like windows.

Cleaning steps:

1. Click "Apple Picture"-"About this machine"-"Save" in the upper left corner.

You can see the occupation of disk space and then clean it selectively.

2. Uninstall some uncommon software, and reinstall and release the cache if necessary.

Clean up the history of "hunting"

If the disk is almost full, the best way is to reinstall the system, which can make a lot of disk space.

Remarks:

Generally speaking, the occupied space is usually photos, videos, backup files and the software itself. As long as you find that part is occupied, you can clean it up. If there are too many video file caches, you can uninstall the software and reinstall it to free up the cache space.