7B is a disk boot error of some kind. Lomg discussion on this here: https://social.techn...=w7itprogeneral
This post by HugoCore fixed some people:
I had also Windows 7 with 0x0000007B blue screen while loading Windows 7.
It's turn out that the BIOS had been change to another disk mode, IDE, ex-raid. For now I wanted IDE, to be simple.
Here's what works with me:
In the BIOS, i went change the SATA to IDE mode (NOT RAID, NOT AHCI)
1.Boot Win7 DVD
2.Choose the Language Selection.
4.On the recovery tools choose the Command Line Console
8.File > Load Hive
9.Select < windows partition with problem > \Windows\System32\config\system (Backup this first, it's advised)
10.Regedit will ask for a Key name: Name it something like "temp"
12.Searched for every key containing the value “SCSI Miniport” where the "Start" value was a "3" and changed the "Start" value to a "0". (F3 to search next result).
14.File > Unload Hive
16.Enter in Win7
Other possibilities as well, read through that thread.