WIN7pro fails bootup after failed WIN10pro upgrade attempt

[Robert0063]

After receiving the following error, Win7 would not boot:
"Window 10 couldn't be installed"
"Error found: 8007025D-2000C"

The attempted upgrade to Win10 reached 98% then reverted to the previous configuration of Win7.
However, it went into an endless loop BSOD.

Temporary solution: A previous version of the file bootcat.cache was copied to the folder C:\Windows\System32\CodeIntegrity\
Win 7 booted successfully; however...

The bootcat.cache file, which was 35MB, was rewritten to 3MB
I attempted to reboot and the endless loop BSOD occurred again until I replaced the bootcat.cache file with the 35MB file

sfc /scannow found no errors
chkdsk found no errors

I would like to fix the Win7 bootup problem and upgrade to Win10
Thanks for your input

==========
HP Z820
RAM 32GB
2 processors: Xeon 2.3GHz
4 Harddrives

 

[Maxstar]

Hello,

Try a clean install instead of an upgrade, see the manual below.

https://www.tenforums.com/tutorials...10-directly-without-having-upgrade-first.html