Win10 system C disk space is gradually reduced, what is the reason for how to solve

First, the reason analysis
This situation is caused by the expansion of the FileRepository folder, this folder is used to save the Windows automatic update push driver update, even recommended The driver does not install properly, but the download will continue to be updated until it is full.






Method 1: Disk cleaning
This is the recommended method, safe and effective, right click on the C drive, select properties in the menu, click on the clean disk, select clean System files are then cleaned up without worrying about the prompt box that appears.
Method 2: Manually delete
Open the FileRepository folder, sort by time, select all the folders after the time of the problem, and then delete them. Some of them may not be deleted, just skip them.