(The shadow system (PowerShadowMaster) is to block and maintain the Windows operating system and create a virtualized image system that is exactly the same as the real operating system. After entering the shadow system, all-round operations are virtual, and comprehensive viruses and rogue software cannot infect the real operating system. If there is a problem with the system, or the Internet may generate junk files, you only need to restart the computer easily to restore the best condition in an all-round way.)