Prevent Virus from Flash Disk

First,shutdown auto play service.
Win+R->gpedit.msc->local machine strategy->computer configuration->management template->biclick system->biclick close auto play
Second,modify regedit to prevent Flash Disk virus destroy.
Win+R->regedit->HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Explorer\MountPoints2
Delete "shell" under MountPoints2 and right-click.Choose purview.Choose "refuse" of Admin & yourself about "totally contral" and "read".
And there is another choice:delete MountPoints2(maybe dangerous).