I am using Apple iTunes for Windows 64-bit, version 12.12.9.4 on Windows 11 and can not find the origonal installer in Apple store? Also having serious hang problems now that I have reached over 40,200 songs.
Did you get it from the Microsoft Store? The general troubleshooting advice when iTunes fails to install properly (and reinstalling or repairing it does not work) is to remove not only iTunes but all related components, reboot, remove the target installation folders and reinstall
Follow the steps in the Removing and reinstalling iTunes and other software components section of:
Troubleshooting issues with iTunes for Wi… - Apple Community
Why don't I find Apple iTunes for Windows 64-bit version 12.12.9.4
