That depends on what the problem is caused by, which will be hard to diagnose if it won't run.
So an appropriate question in return is: Where's your backup?
I don't mean that to sound snarky, just trying to be helpful. If you can get it running, try to roll back to a "Restore Point". If you can't get it running, restore the machine from a backup.
Personally, I do a full backup of my Windows machines just prior to applying Windows Updates. That way if I have to restore, I haven't lost much work.
And this is the place where windows has brought us to in 2020.
No one is happy dancing about it.
Thanx for the tips..
Appreciate very much