On the Q&A platform, many netizens asked "How to slim down the C disk" and "How to clean up the C disk", which is actually asking the system disk to slim down (because most computer system disks are C disks). After helping the system disk to lose weight, it can improve the running speed of the computer and reduce the computer jam. 360 security guards must have this function. We just need to open 360 security guards, click on the function encyclopedia → game optimization → system disk slimming, and we can "slim down" our system disk. The operation is very simple and the effect is good. 360 security guards will also pick out important documents for us to choose to clean when cleaning.