When playing videos, video podcasts, films or TV shows in iTunes for Windows 10.7.0.21, you receive an "iTunes has stopped working" message, and your iTunes stops working.
Try disabling Direct3D acceleration in QuickTime.
Open your QuickTime control panel (either via the Control panels, or by going "Edit > Preferences > QuickTime Preferences" in the Quicktime Player). In the Advanced tab, uncheck Enable Direct3D video acceleration:
... and click OK.
Quit the QuickTime Player if you have it open. Restart the PC and try watching the videos, video podcasts, movies or TV shows in iTunes again.