signature error 800b0100

Hi,
Got Win 11 24H2 (home edition). I got my own custom device driver (inf,cat,,,) files with no signature. Disabled the signature requirement by command line and seems like it is set to test mode. Still when i try to install it, i get the signature error 800b0100. Tried all sorts of things suggested online.

It would seem you attempted to install the driver in test mode and didn't turn test mode off.
From cmd as admin bcdedit /set testsigning off

If that is successful, try method 1 or 3 here. How to Install Unsigned Drivers in Windows