This is a typical symptom of computer virus. In general, the heavy virus you mentioned is not from the network, but some other file viruses. The virus you are talking about is mainly the dispersion of some viruses in the operation of your software itself, which causes the phenomenon that the software can't use forced signature and blue screen normally. In general, the damage to the computer is not great, and your data will not be lost. At this time, you only need to enter the safe mode to restore, and finally the correct configuration can be solved. The second solution is very good, and reinstalling the new system can completely solve this problem.