Win10 system C disk space capacity is insufficient solution

Less than half a month after Win10 was installed, the space of the C drive gradually reduced the capacity of several Gs. It doesn't matter if the original C disk space is allocated too much, but it has been allocated too little before, and it is not enough now. How to solve this problem?
First, the reason analysis
This situation is caused by the expansion of the FileRepository folder, this folder is used to save the driver update of the Windows automatic update push, even if the recommended driver can not be installed properly , but will continue to update the download until it is full of space.
Second, the solution
Method 1: Disk cleaning
This is the recommended method, safe and effective, right click on the C drive, select the properties in the menu, click on the clean disk, select clean system files, Then clean up, don't worry 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.
The above is the reason analysis and solution for the gradual reduction of C disk space under Win10 system. Perhaps you also learned about the FileRepository folder through this tutorial, so that you can avoid the C disk is not enough in the future.