1. Download and install WinRAR. ' ?6 U; V7 s# s! E5 |8 N* H' W2. Right-click the iTunesSetup.exe icon and choose "Open with WinRAR". ' n4 Q" M$ |" I3. Once the EXE is opened in WinRAR, double-click AppleApplicationSupport.msi and when the installer window is open choose "Repair". 5 |0 E+ r& M1 J4. Done! You can now run iTunes normally