Secure Boot or UEFI settings incompatibility. Fix: Ensure your BIOS is set to UEFI (not Legacy/CSM) and that the ISO is written to a GPT drive (or use Rufus in UEFI mode).
No. The ISO does not contain your unique license key. The key is either on your VLSC portal, your MSDN dashboard, or your physical COA sticker. The ISO only contains the default KMS client key, which is for activation against an internal KMS host. iso windows server 2022 datacenter download
Downloading the Windows Server 2022 Datacenter ISO requires selecting the correct channel based on your needs, whether for temporary testing or a permanent production environment. 1. Official Download Channels Secure Boot or UEFI settings incompatibility