Software Licensing Service reported that the grace period expired, 0xC004F009

When a copy of Windows is installed on a computer, it gets into a grace period. It means that one can use Windows without any restriction on its feature. If you are receiving an error code 0xC004F009, it means that grace period has expired. The complete error message will appear as:

Error Code 0xC004F009, The Software Licensing Service reported that the grace period expired

The possible cause for this could be that the grace period expired before the system was activated, as a result of which the system is in the Notifications state now.

Cause of Activation Error 0xC004F009

When it comes to Volume Licensing, this error code 0xC004F009 is related with MAK enabled computer in an enterprise. While one of the reason is that the computer wasn’t activated even though it was connected to the Enterprise. The second reason is when the system was never connected with the enterprise, and the grace period expired before the system is activated. Post this, the copy of Windows runs in Reduced Functionality Mode (RFM).

0xC004F009, The Software Licensing Service reported that the grace period expired

1] Activate Windows using the command line tool

Obtain your MAK key from the IT Admin.

Open an elevated command prompt and run the following command to install the product key or replace the existing one:

Slmgr.vbs –ipk <your mak key>

Then type the following and hit Enter:

slmgr.vbs –ato

This will activate the Windows after connecting to Microsoft servers.

2] Activate Windows by phone

It is possible to activate Windows by Phone. This works in two cases –  one when Windows key bought by the consumer for personal use and the second is when it’s a MAK key. Both of them pass through Windows Activation Servers.

You will need to use the command “slui 4” to get the Installation ID, and then to Microsoft Support to activate the copy of Windows on Phone.  However, if it still doesn’t work, you may need to re-install the Server Core to resolve the issue.

3] Increase Grace Period

It is possible to increase the grace period, but you will have to get another genuine Windows Key after that. It is possible that somebody has sold you a MAK key, and you didn’t activate it. Since MAK keys are not recycled, the number of activation on this has exceeded already. Here is how you can get the grace period:

Open Registry Editor as an admin and navigate to the following key:


Change the value of mediabootinstall to 0.

Nexr, pen command prompt with elevated privileges, and type the following and hit Enter:

slmgr -rearm

This will add the grace period to your activation, and then you can reboot your computer.

You can only reset the activation period up to 4 times. After this, you will need to get a new key, and activate Windows the usual way.

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Anand Khanse is the Admin of, a 10-year Microsoft MVP Awardee in Windows (2006-16) & a Windows Insider MVP. Please read the entire post & the comments first, create a System Restore Point before making any changes to your system & be careful about any 3rd-party offers while installing freeware.