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what registry key actually controls ctrl alt del background color?
Want to do the same thing here.
Change background color of CTRL+ALT+DEL-screen
Change background color of the ctrl alt del screen. I'm trying to do this on a number of Windows Server 2019 VM's, but windows 10 will work the same way.
I know you can go to settings, personalization, colors, and change your accent colors. And for us, this does indeed change the ctrl alt del background color. BUT we want to do this programatically.... and here is where it gets weird.
I have a new VM (lets just say its windows 10 latest build). I set up the local administrator profile and configure it exactly how I want it. Let's assume I select the accent color "gray". Everything is as expected. The problem is, I sysprep this windows 10 installation.
After sysprep, when new users log in, they get the default profile like I want. with the gray accent color. The problem is, the ctrl alt del background color somehow goes back to the default blue.
If I go and select a different accent color and then select "gray" again, the ctrl alt del screen will now be the correct gray color. So my question is, where on earth is the actual setting that controls what background color the ctrl alt del screen is so I can fix this sysprep/default profile issue through a registry GPO or something.
Also, want to be very clear. This is NOT the lock screen. This is the ctrl alt del screen. If you are already signed into a computer and press ctrl alt del you will see this screen.
Also, already found this thread
Ctrl-Alt-Delete Screen Color won't change with accent color
And while its a similar problem, our issue has nothing to do with sleep settings, or coming out of sleep. It has to do with users logging into a VM after a machine has been syspreped. The accent colors don't seem to be 100% applied correctly after a sysprep and users logging in with a custom default profile.
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