Hi, I am Dave, I will help you with this.
Can you get into the recovery Environment using this method?
Start your PC, just as Windows attempts to load (spinning dots), press and hold Power Button for 5 - 10 seconds to perform a Hard Shut Down
Do this twice
On the third start Windows will boot into the Recovery Environment and from there you can access System Repair, Safe Mode, Command Prompt... etc.
1
If you can, try each recovery option in there, like uninstalling the latest update, System Restore.. etc.
2
If none of the other options are working for you, a Windows Reset should not delete your personal files
3
If you can get into Command Prompt, try this method to backup your personal files:
Insert a USB drive into your PC
In Command Prompt type this and press Enter:
notepad.exe
Notepad should open, then select File - Open.
You can then use the File - Open dialog like a small File Explorer to drag your personal files and folders onto the USB.