Microsoft 365 subscription automatic license renewal fails when sppcext.dll is missing

Symptoms

When Microsoft 365 paid subscription tries to renew, the license fails and eventually displays a red bar stating that the subscription is unlicensed.

Message 1:Couldn't Verify Subscription

We couldn't verify your Office 365 subscription, so most features of <application> have been disabled. Please make sure your're connected to the internet and restart your application.

Screenshot shows the message of Couldn't Verify Subscription.

Message 2: Application (Unlicensed Product)

Screenshot shows the message of Application Unlicensed Product.

Cause

A component of the Windows SPP Service is missing from the computer.

Resolution

Run the System File Checker to repair any missing files. Follow the steps in the following article.

Use the System File Checker tool to repair missing or corrupted system files