Fix Error 1921 While Upgrading or Installing iTunes on Windows
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There are some users facing an issue with while upgrading or installing iTunes. When iTunes installation is about end displaying “stopping services” following error message pops up,
“Error 1921.Service iPod Service (ipodservice) could not be stopped. Verify that you have sufficient privileges to stop the system service.”
The above error message gives only two options, Retry and Cancel and if you press cancel then it uninstalls everything that was already installed. Fortunately a solution to iTunes Error 1921 is very simple.
Fix iTunes Error 1921 Service iPod Service Could Not be Stopped
1. Click on Start and go to Run and type following command
Msconfig
2. Go to Services tab
3. Check “Hide All Microsoft Services”

4. Now Click on Disable All and
5. Click on Restart Prompt System Configuration dialogue box.
6. Now try to upgrade and install iTunes.
You need to Re-enable all Disabled Service in Step number 4.
Update : 31 March, 2009
Check out how to fix several other iTunes related issue on windows by shanker Ganesh on killertechtips















Reader Comments
Thanks, Sandip for the link. Bookmarked this post on Delicious for future reference :)