pc so lag after trojan

Kyle Toralba

Honorable
Jul 20, 2013
49
0
10,530
okay so my pc got trojan virus, after how many hours my pc programs and all are not responding, as usual ill restart my pc, but suddenly after i restarted it, i cant even boot, starting windowsis so lag, so i decided to reformat it, i reformatted drive c but even in win7installation still lag , ok noww i got a fresh formatted c and newly installed win 7 but still lag im stuck on starting windows, help pls