If your hard drive is formatted in MBR and not GPT you could just have used Daz loader to activate KMS activation is only for 180 days your brother probably used a kms script it may run a scheduled task to to keep activation going it may also have added entries to stop security essentials. Personaly if this is fresh install and it is formatted in MBR just use Daz loader.
I can post the .bat also in code tags if you need / want , to check if it did something "weird" or strange to the system. Thank you.
@Enthousiast any idea how to remove the kms stuff from his system so he can just use daz loader Im not up on KMS stuff only use it for office.
I never needed to, still learning Iirc, @abbodi1406 once published something to clean up, but i am not 100% sure.
I got this by private convo, you can try at your own risk: Code: Admin Command Prompt: slmgr /ckms (clear the name of KMS server used to default and port to default) slmgr /ckms-domain (clear the specific DNS domain in which all KMS SRV records can be found) slmgr /upk (uninstall current installed product key and return license status back to trial state) slgmr /cpky (clear the product key from the registry to prevent disclosure attacks) slmgr /rearm (reset the licensing status and activation state of the machine) Reboot, then use Daz's loader. Hopefully that should clear the kms stuff and clear the key(s) etc then rearms OS. Not 100% sure it will work unless someone else has more info.