Its depend on your situation, but 99% this is AVG fake alert. Their update from morning contains instruction that igfxcfg.exe is BackDoor.Generic11.TDY, but its legitimate Intel grafic driver file. reUpdate 3 hours later the same file is clean, so a mistake of AVG team. Reupdate should solve your problem, suggest also restore files, saved in virus vault. If your situation is different (not igfxcfg.exe file, located in c:\windows\system32, c:\_restore.... or install dir c:\compaq\....), maybe its real virus, but I guess 1% probability. Jan
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