2. Under normal circumstances, viruses can only invade computers if they accept foreign files, such as online downloads, USB flash drives, mobile hard disks and mobile phones. , but generally speaking, there will be automatic detection in these cases;
3. Running the computer housekeeper also needs to occupy some system resources. If the system is healthy, running computer physical examination will not change much in general. Generally speaking, it can be run at the prompt or after a period of time (such as a week or two).