Wednesday, January 27, 2021

STOP 0x74 on Windows Virtual Machines

 So I've been running into this a fair bit of late.

After chasing down the rabbit hole on the first one, worrying about virtual disk corruption, malware, legacy drivers (it was a P2V image), underlying host physical memory problems, the resolution was surprisingly simple - increase the virtual machine startup memory by 1GB.

Turns out the boot-time drivers had increased in number/size (looking at you anti-malware drivers) and the dynamic memory boot-time driver doesn't kick in early enough to allow the SYSTEM registry hive to be loaded properly.

So if you run across this in a virtual setting check the VM's startup memory size and bump it up.

RDP to Windows 7/8.1/10 - "An Internal Error Has Occurred" or Black Screen Upon Connection

I've had this error pop up from time to time. Most of the time turning off Persistent Bitmap Caching fixes the problem.
It can also fix the problem where you initiate an RDP connection but are presented with a black screen but a fully functional RDP session (confirmed if you use an RMM tool/VNC on the server to shadow the RDP session).


Or for those of you who like to edit saved .RDP files in Notepad:

bitmapcachepersistenable:i:0