windows server 2012 r2 datacenter install virtio-win-0.1.240 error

[bbbccvbvv]

os：windows server 2012 r2 datacenter
file：virtio-win-0.1.240.iso（md5sum：e5d3f689e99fb56add9705baf408d34c ）
description：upgrade viostor form 21500 to 24000（from pe）
before

after

But when start the machine，error occured

I disable driver signature enforcement or use cmd "bcdedit /set testsigning on" , can start machine normal.

I want to know the reason.
Is win12 eof?
Will fix the bug later?

[YanVugenfirer]

Windows Server 2012 is EOL.

Also, MS retired the cross certificates that were used to sign pre-Win10 drivers.

[bbbccvbvv]

Windows Server 2012 is EOL.

Also, MS retired the cross certificates that were used to sign pre-Win10 drivers.

👌, i know.Thanks