My screen shakes, opens some software by magic and can sometimes no longer be controlled. What could that be? Hasn't happened all the time now and then
Maybe a virus, that can be good!
Download a good free antivirus and let it go through advanced mode.
If you use Windows 10, you can also use the built-in anti virus, but it is pretty bad.
Ok the laptop is Windows 8 but has been updated to Windows 10
Would Avira be good?