Microsoft embeds Flash Player in IE and Edge browsers on Windows 10 and all updates are distributed by Microsoft via Windows Update (there isn't a separate standalone installer for it). Run Windows Update to check for updates and install if available.
If you're using a different browser, go to https://get.adobe.com/flashplayer (using that browser) to download the latest version of Flash Player.
Error 0xc00007b is a Windows error, not Flash Player. I performed an internet search for the error and quite a few hits. One suggestion that came up multiple times was to run Check Disk (Run Check Disk from a Command Line to Check for and fix Disk Errors). There are others, but since this is an Windows error and I'm not familiar with it I don't feel comfortable suggesting options I'm not familiar with. I recommend performing a search for the error, and if that doesn't work, contact Microsoft again, as this has to do with Windows and not Flash Player.