iTunes for Windows doesn't open after upgrading in Windows Vista, Windows 7, or Windows 8
Sometimes a newly-installed version of iTunes for Windows won't open, even though it appears to be running in the Windows Task Manager. (To view Task Manager, right-click an empty area of the taskbar and click Task Manager, or press Ctrl+Shift+Esc (or Ctrl+Alt+Delete) and click Task Manager. You can see iTunes under the Applications tab of the Task Manager.) This symptom could be caused by an unusable iTunes configuration file.
- Make sure you are using the latest version of iTunes.
- Windows Vista and Windows 7:
- Choose Start > Computer.
- In the Organize menu, click Folder and Search Options.
- From the File Explorer window, click Computer on the panel to the left.
- Click View > Options.
- From the Folder Options window, click the View tab.
- In the "Advanced settings:" pane under "Hidden files and folders," select "Show hidden files and folders."
- Click OK.
- Navigate to the following location by entering it in the address bar or clicking through the folder hierarchy listed: C:\ProgramData\Apple Computer\iTunes\SC Info.
- Right-click the SC Info.sidb file shown and click Delete.
- Right-click the SC Info.sidd file shown and click Delete.
- Restart the computer and open iTunes.
If the above steps don't resolve the issue, try these steps.