I've really been left wondering what's wrong with the W10 devs... Erasing data, inability to choose default app...all is not well, methinks.   Seriously, what kind of company releases crap like this? Is there no pride? No sense of responsibility? This might help if you have bugs with the updates... https://www.techrepublic.com/article/windows-10-update-bugs-the-latest-fixes-and-workarounds/?ftag=TRE684d531&bhid=23906934820265111040450294515746