HELP! Window 7 blue screen during install Im Really in need of HELP.

Hello all,
I am in need of help! First thing I have been building systems for the last 33 years.
And i mean a average of 10 to 20 boxes per year. I do this as part of my job, I am a private
"consultant" for the same 3 companies this whole time. So that is my basic backstory, I do not
claim to be a expert but i have a pretty good idea of what i am doing. This brings me to my current
Problem. I am building a couple of office boxes and am having a huge problem with one.
Its using a Ryzen 3 3200g with 2x Corsair Vengeance LPX DDR4 3200mhz sticks,A HP NVME EX900 250GB SSD.
On a Gigabyte B450M-DS3H board. So i am installing Win 7 to use the COA that the client has and then will
do the upgrade to Windows 10. Before anyone tells me it will not work i have built more than 10 of these
on this board and many of them have been done by the WIN7 TO win10 method and have NEVER had a problem.
So now during install i get as far as the updating the registry when it blue screens and reboots. I have seen the
IRQL_NOT_LESS_OR_EQUAL blue screen and the BAD_POOL_CALLER Blue Screen each time when i get tXPGhat far.
All that was on the board was the NVME SSD and the Memory and the CPU. So i swapped out the following,
First the Memory with a pair of ADATA XPG DDR4 3000mhz, and then NVME to a Mushkin Pilot 250GB, the power supply
and FINALLY a ASROCKS B450M-HDV board and no matter what i still keep getting blue screens! The only
other thing to try is another CPU. Now i really do not want to take apart the famalies Computer to yank out the
Ryzen 5 2600 inside of it so before i do that and have my family very mad at me as they ALL in this time of being
locked down are on the computer almost all day and night. So i am looking for ideas of what am i missing? what type of
problem could show up EVERY single time i install the OS and I have installed it clean each and everytime i have swapped out a piece of hardware. BTW i have also downloaded a few ISO's and tried other versions of windows in the
off chance that my copy was some how damaged. NO MATTER what i do I cant get rid of the BLUE screens AND have built
many boxes useing all the same hardware. SO PLEASE tell me what you think.
Thank you for reading and I thank you all in advance! Be safe and be in good health!
Ron