@hobbit666 said in Windows 10 Pro Volume License (KMS) to OEM/BIOS:
Yeah the upgrade keys were full upgrade not vl keys.
I think they"expired" because we removed our Kms server a while ago.
Any way it all works now 😁
Well - the expire notice is, as you said, because the VLMK ISO that was used to install these machines making them KMS/MAK dependant, can't contact a KMS server. You can fix this by replacing the KMS key with a MAK key. Then the machine will activate directly against MS and you'll be golden.
I had to do this for a Win7 machine I moved off my main network and onto a private network that only had direct internet access - i.e. it could no longer reach my KMS server.
Dec 2019 I'm going to have to move another Win7 machine to a totally isolated network. I'm guessing I'm going to need to get it to an OEM Key, activate against MS, then it should be fine forever being offline.