I have two internal sata drive, first drive has window 7 and other drive has window 10. I think my first drive has virus. so whenever I start my pc , I unplugged the first drive and use the second drive so that virus don't spread in my second drive. but I haven't formatted my first drive because I play lot of old games there. and antivirus also doesnt work properly because too much infected with virus. so I never start my pc with two internal drive plugged in motherboard. so whenever I want to play old games I plugged my first drive and remove the second. and when I want to use window 10 for personal work I unplugged the first drive n plugged the second. but I am afraid what if virus from first drive stay in motherboard and when I plugged my second drive after restart ,that virus will enter in my 2nd drive too????