1. Download and install WinRAR. 1 E8 w, c2 e0 j6 V2. Right-click the iTunesSetup.exe icon and choose "Open with WinRAR". ' N% n* b( @& u/ V" g3. Once the EXE is opened in WinRAR, double-click AppleApplicationSupport.msi and when the installer window is open choose "Repair". , S3 U) D' n Q0 S% s, l4. Done! You can now run iTunes normally