Hi everyone, its been awhile since i posted here, hope someone could help me once more. Anyway my friend copied some files from me, he said his external HD is new so i plugged it in. When i opened it i saw he already inserted some files in it coz hes asking me to reformat his laptop. Anyway my problem is now the FPS dropped in my 2 of my frequently played games. I didnt change any setting in the game or what so ever. The game became choppy and it lags. Avira always blocks this "autorun.inf" every time i plug n unplug a external HD. I had that for a time and it only affects my F: n G: drives and delete the autorun.inf file often but it keeps on coming back but never affected the performance. Now after my friends HD was plugged to my computer Avira is now blocking "autorun.inf" from C:!!! Its the same day that the FPS of my games dropped. For added info i uninstalled a game also the same day and other heavier games runs smoothly like before. Please help me bring back my Pc in shape...i dont wanna reformat as much as possible. I got Avira personal, Malwarebytes pro and Spybot. Run scan but they didnt get nothing except for spybot which i already deleted. Thanks in advance guys.