1
File History not working after the September update is a widely reported problem, Microsoft have indicated they are aware of this problem and they are working to provide a fix for that as soon as possible.
2
For the other problems you are experiencing, the best first option would be to open the Settings App, go to Windows Updates - Update History, scroll to the bottom of that window and select 'Uninstall Updates' and check if you can uninstall the update that caused the problems from there.
If that is not possible, in the Settings App, go to System - Recovery.
Click the 'Reinstall Now' button in the 'Fix problems with Windows Updates' section, then wait for that process to complete, this process does not affect your files, settings or installed apps.