I've been using Windows Repair PAID version for years, nearly on a monthly basis, and never had a problem until now.
I'm running Win10 Pro 64-bit version 1809 Build 17763.55.
I ran Windows Repair 4.2.0 a few weeks back and had no issues with it -- just like the previous versions.
Then, a few days ago, I got a notice that an upgrade was available (4.3.0) so I downloaded it and ran it.
When I rebooted back into the normal desktop, I noticed two problems:
1) One of my displays was black. In checking the driver in Device Manager, it indicated an issue, so I removed and reinstalled the driver -- no change
2) The Search Box down on the taskbar no longer accepted typed input. I did some Googling and found a way to fix this.
I suspected it might have been one or more of the repairs, so I restored from image backup and ran WR again. This time, I selected only the first repair. Same results, same problems.
So, restored from backup again, ran WR again -- but this time, selected no repairs. Just booted into safe mode and came back. Same results, same problems.
So, restored from backup again, booted into safe mode using MSConfig, expecting the same problems. But this time, there were no issues. When I came back from safe mode, the display worked fine, as did the Search box.
So, I tried to use WR v4.2.0 -- but when I ran it, it refused to start, telling me that I needed to download and run the updated version. I suspect that 4.2.0 is incompatible with Win10 v1809 -- since it worked without issues with Win10 v1803.
At this point, I'm stuck. I can't run 4.2.0, nor can I run 4.3.0 without serious issues.