If the computer C disk turns red, it means that your C disk has insufficient storage space and the system will get stuck. Solution: Open my computer, right-click drive C to select properties and clean the disk, so that some surface garbage and fragmentary files on drive C can be cleaned up first.

You can download a slimming software for disk C in Baidu Software Center, and move all the software programs installed on disk C to other disks, so disk C will save a lot of space.