Hi
So I installed a couple of patches on our Windows 2012 R2 Hyper-V host and everything seemed fine.
But when i rebooted a VM i got Windows Boot Manager error 0xc0000428 saying the "digital signature for this file couldn't be verified"
Turning off the VM and moving it to an unpatched host made the VM boot again.
Live migrated it back to the patched host and it ran fine, but if I restart it on the patched host i get the same error again.
Removed all the patches exept KB3173424 that isn't uninstallable. No luck.
Anyone seen something simular and has a fix ?