There is a reason why I never upgraded to win10.I think system restore was the most reliable and best option to get your files back.
Yeah I never had a catastrophic chain of failure like this before.
Where not only did Windows safety measures fail, damn Iobit failed also. Not to mention never had a serious false positive issue like this before with Avast... not to mention never had an Avast update bug like this before either.
Luckily for me I don't really keep anything vital on my computer, even if it breaks. Though it will be super annoying for me to find out my like super old games/software installers are all broken because of this, especially when I didn't actually look through the list of things that were moved into the virus chest before reinstalling Avast.
Though I hope after this incident Avast takes way more care on testing false positives and do more quality control on testing stuff before definition releases because in this false positive wave, it wasn't just like 1 or 2 things wrongly marked, it was a ton of basic vital system programs. I saw quite a a few windows system files flagged yesterday when I quickly looked at the results.