Apple software update was stuck at downloading now its stuck at cancelling I got a notification to update the itunes v12.2.1.Initially had lots of download going on so the download was slow.Later after completing the  windows downloads the itunes update is simpply stuck at one place it doesn't resume the download.


When I start another download it starts downloading very fast but when I see the same for itunes the update doesn't resume it is stuck at 51.70MB

A few while later as it was still stuck on that 51.70 I clicked the Stop but now even the cancelling is stuck.

Although I can simply open the task manager and closed it but why exactly did the software update didn't resume when it had the free bandwidth for updating
For my situation, none of these solutions worked for Windows 10. I resolved it by going to the iTunes site, download and run the full iTunes install, rather than just the update.