If you are having trouble installing iTunes or QuickTime for Windows, follow the troubleshooting suggestions described in this article.

Make sure you have admin access

To install iTunes or QuickTime software, you need to be logged in as an administrator on the computer. If you're not sure if you have administrator access, contact the owner of the computer or your system administrator.

Get the latest Windows updates

The first thing to do when troubleshooting an installation issue on a Windows computer is make sure you have the latest Windows updates installed-to get the latest updates, go to the Microsoft Windows Update page.

iTunes and QuickTime software for Windows require Windows XP or Windows Vista with latest Service Pack installed.

Solutions to Common Installation Errors

Here are some common symptoms you may see when installing iTunes and QuickTime for Windows. If you are experiencing one of these symptoms, try the suggested troubleshooting steps.

• iTunes and QuickTime for Windows XP cannot be installed without Visual Basic Script (VBScript)
  
  
• iTunes for Windows: "Disk is locked" or "iTunes folder cannot be found" when installing or opening iTunes
  
  
• iTunes 7 or later for Windows Installation stops responding while "registering modules"
  
  
• QuickTime or iTunes Installer "Could not open key" alert stops install on Windows
  
  
• iTunes: Windows reports that iTunesSetup.exe is not a "valid Win32 application"

If you are not seeing one of these specific symptoms, or if the suggested steps do not help, proceed to the General Installation Troubleshooting section below.