Not physically creating a restore point has been reported before and including by me where I'll no longer have it create it.
However, it does auto create a registry back up prior to running the repairs.
Use the program to boot up into Safe Mode with Networking then open it to click on Backup Tools - Restore under Registry Backup - Restore Registry - then use the dropdown to select the back up and then hit Restore Now
When I run the program I uncheck all boxes relating to the App repairs but it has still affected some and I've had my default browser changed back to Edge from IE and I can get up to 14 notifications that there was a problem with such and such an app which was then reverted to whatever.
I only run the program to check out each version or to try and replicate what others have reported.
A couple of things I'd like you to check and they are if you can still access Device Manager and Services.
I normally access Services my going Start - type services.msc and press enter.
For either, I get a window pop up telling me that the Administrator has blocked mmc.exe to protect me and reverting through the registry restore option doesn't resolve.
So far, I'm the only known one that is getting this error which is under investigation.
Fortunately I always create a system image before running any program that can change the system, so I can get out of that.
As for the problem caused by the last update, I'd take that up with MS.
Click on Contact support in
https://support.microsoft.com/en-gb/contactus/ and describe your problem.
Help with problems caused by updates are free and another member has gone this route because of a problem caused by an update.