Hello mukesh addu,
What you are experiencing is not normal behavior for a properly licensed Windows Server 2022 Standard installation. Once activated with a valid retail or volume license key, the activation should remain permanent unless there has been a change in hardware, a reinstallation, or the system was originally activated against a KMS host with a limited activation period.
If you used a MAK (Multiple Activation Key) or retail key, activation is one-time and should not expire. If the server is asking for activation again after one year, it suggests either the system was activated against a KMS server or the activation state was reset due to system changes. KMS activations are valid for 180 days and require periodic renewal against the KMS host. If your environment does not have a KMS host available, the server will eventually fall back into an unlicensed state and prompt for activation.
To resolve this, first check the activation channel. Run slmgr /dli from an elevated Command Prompt. This will show whether the system is activated via KMS, MAK, or retail. If it shows KMS, you need to ensure the server can reach your organization’s KMS host or switch to a MAK key for permanent activation. If it shows MAK or retail but still asks for activation, run slmgr /ato to force reactivation. If that fails, re-enter the product key using slmgr /ipk <your product key> followed by slmgr /ato.
If you are using genuine retail or volume MAK keys and the activation still does not persist, it may indicate corruption in the activation store located under C:\Windows\System32\spp\store. In that case, re-entering the key usually resolves the issue. If not, you may need to contact Microsoft Volume Licensing Service Center or Microsoft Support to validate the key and reset the activation state.
I hope you've found something useful here. If it helps you get more insight into the issue, it's appreciated to accept the answer. Should you have more questions, feel free to leave a message. Have a nice day!
Domic Vo.