Hi i think this will solve your problem;
1 Download WinRar
2 Go to your downloads and open ‘QuiclTimeInstaller’ with WinRar (Right click on ‘QuickTimeInstaller’ find WinRar option and choose open with winRar)
3 Then the WinRar screen will pop up. Right click on the screen and choose Repair archive (Alt+R)
4 And done!
arda