On Windows 11 64bit professional Itunes is freezing constantly
Browsing my library, new music, playing whatever...the program freezes up.
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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. See the Removing and reinstalling iTunes and other software components section in:
Troubleshooting issues with iTunes for Wi… - Apple Community
The above should not affect your music library, but it is always wise to backup first.
Back up and restore your iTunes library on your PC - Apple Support