Windows 10: Windows Update Error 0xc000021a Installing Build10041

I booted my backup PC with Windows 10 Preview on it after seeing the availability of build 10041 announced. The update was there along with a lot of other invalid updates. I boot up WIN10 at at least every other day to see what's new. So I was surprised see so many of these other updates. Many of them were for Intel HD 4600 graphics and ASUS Bluetooth hardware that would be imbedded on the MB. But my Win10 PC is AMD based and has AMD Radeon 3300 on-board graphics and no on-board Bluetooth. The strange thing is that those updates that cause the error are appropriate for my other main PC which is ASUS Z97-PRO and Intel i-469K based with Intel on-board HD4600 graphics... and ASUS on-board Bluetooth. It's spooky but it is as if windows update is confusing its search with my other Windows 7 PC. In WIN10 9926 Windows Update you can't decline an update that the system finds for you.

The system suddenly does a restart and then it can't find the C: drive. I have to power off the power supply for 10 sec and restart to get back to being able to see the SATA1 drive. I had to work through three cycles of those invalid updates and on the last I got the final 21a error code... after that on the next Win10 boot the build 10041 started to install normally.

:)

 

Clean Install of Windows 10 from USB giving me error code 0xc000021a before install

So I tried updating from the original ISO and it gives me the 0xc000021a error after it restarts for the first time during installation. I reinstalled a fresh copy of Windows 8.1
thinking maybe a startup file was corrupted. But after the new 8.1 install, it is still giving me the same 0xc000021a error. Then,
when it boots back up after the error, it says "0xC1900101 - 0x20017, the installation failed in the SAFE_OS phase with an error during BOOT operation".

 

Clean Install of Windows 10 from USB giving me error code 0xc000021a before install

I had Windows 8.1 installed and wanted to do a clean install of Windows 10 on my 120GB SSD. I created a bootable USB drive with Windows 10 on it. When I try to boot from it, it will read the USB, then after about 10 seconds it gives me a 0xc000021a error.
I tried booting from the USB on my laptop and it went to the update prompts just fine. I can find plenty of info of the 0xc000021a error code affecting startup, but not an update. I did update using the same USB file without a clean install and it worked,
but would still like to have a clean install. Any help would be appreciated.