Locate the following folders and delete them, if they exist:.Open the Common Files folder and then the Apple folder.Find the following folders and delete them, if they exist:.If you're running a 64-bit version of Windows, continue with step 8. If you're running a 32-bit version of Windows, skip to step 13. Open Local Disk (C:) located in Computer, or whichever hard disk your programs are installed on.

Open the Common Files folder, then the Apple folder.

If you see a message that reads 'Cannot delete iPodService.exe: It is being used by another person or program,' follow the additional steps at the bottom of this article before proceeding with the rest of the steps below.

Delete the following folders, if they exist:.

Click OK to open the Program Files folder.

Press the Windows and R key on your keyboard to open the run command.

After you remove iTunes and its related components, follow the steps below to locate and remove any additional supporting files. In some rare cases, files might be left behind. In most cases, removing iTunes and its related components from the Control Panel will remove all supporting files belonging to those programs.

Reinstall itunes os x