I'm getting the message that my itunes folder is locked and that I do not have permission to run the program. Please help with this!

The full and precise text of the error message is useful in directing help.

See Empty/corrupt iTunes library after upgrade/crash - Apple Community or Troubleshooting issues with iTunes for Windows updates - Apple Community.

it is possible that a corrupt preference file may cause iTunes to fail at launch with one of these errors:

• The file iTunes Library.itl cannot be read because it was created by a newer version of iTunes.
• The folder “iTunes” is on a locked disk or you do not have write permissions for this folder.
• The iTunes Library.itl cannot be found or created. The default location for this file is in the 'iTunes' folder in the 'Music' folder.

It may be worth trying the shift-start-iTunes method (option on a Mac) to actively select the .itl file that should contain your library. If you still get the error message try Repair security permissions for iTunes for Windows and/or check for interference from anti-virus software.

If none of the above applies then a full tear down and reinstall of iTunes is likely on the cards.

tt2