Since we can't press upstairs, let's start from other aspects. How long has it been since the owner's computer was cleaned on the first floor? Now, we might as well clean up the garbage for the computer, take down the memory, brush the memory slot with a brush, wipe the golden finger of the memory and turn it on.

If you restart after a while, it may not be a hardware problem. At this time, it is recommended to reinstall the system, because it may also be because some software is incompatible with the system. Then don't download other software to open multiple web pages, and it's OK not to restart one of them after a while. If it is restarted, please take it to repair.