I'VE FINALLY FIXED IT.
@gasznak
I fixed it and can boot from steam! Here's what I did..
>Open .cmd as Administrator.
>Type in sfc /scannow
>Allow it to get to 100%, in my case it notified me of a corrupt app.
>Refer to your windows/logs folder and open up CBS.log
>At the very bottom I saw this
2020-04-05 18:13:05, Info CSI 00000239 [SR] Repairing corrupted file \??\C:\WINDOWS\Microsoft.NET\Framework64\v4.0.30319\\System.Configuration.Install.dll from store
2020-04-05 18:13:05, Info CSI 0000023a [SR] Repairing corrupted file \??\C:\WINDOWS\System32\\mscoree.dll from store
I restarted my PC and it now works!