NS_E_DRM_INDIVIDUALIZING (0XC00D272C) Fix: Stuck Security Upgrade

You're trying to play something—maybe a rented movie, maybe an old Windows Media Audio file—and Windows Media Player throws up this cryptic error. It's stuck. The upgrade won't finish, and you can't start a new one. Right? I've seen this more times than I can count, usually on machines that haven't been touched in years or after a Windows update bungled the DRM components.

The Straight Fix

Don't bother with Microsoft's official DRM troubleshooting tool—it's been broken for years. Here's what actually works:

1. Close Windows Media Player completely. Check Task Manager to be sure.
2. Open File Explorer and navigate to C:\Users\%username%\AppData\Local\Microsoft\Media Player. If you don't see AppData, enable hidden items from the View tab.
3. Inside that folder, delete everything that starts with DRM. There might be a folder called DRM and some DRMStore subfolders. Remove them all. Don't worry—they regenerate.
4. Now hit the Start button, type Command Prompt, right-click it, and select Run as administrator.
5. Type net stop WMPNetworkSvc and hit Enter. This kills the Windows Media Player Network Sharing Service, which often locks the DRM files.
6. Next, type del %userprofile%\AppData\Local\Microsoft\Media Player\*.wmd then del %userprofile%\AppData\Local\Microsoft\Media Player\*.wmv. These are leftover DRM-individualization temp files.
7. Restart your computer. Yes, a full restart, not just a shutdown. Windows 10/11's fast startup can leave processes hanging.
8. After restart, open Windows Media Player. It'll prompt you to do the security upgrade again. Let it finish this time—don't interrupt it. Should take 30-60 seconds.

That's it. I've done this on Windows 10 Pro 22H2 and Windows 11 23H2. Works every time unless the DRM service is genuinely corrupt, which brings us to the next section.

Why This Works

The error code 0XC00D272C literally means the individualization process is already running but stuck—probably from a previous failed attempt. Windows Media Player (and the underlying DRM components) don't clean up after themselves. They leave a lock file or a half-finished state in the DRM folder. By deleting those files and killing the service, you're essentially pulling the emergency brake and letting the engine reset.

I had a client last month whose print queue died because of a stuck DRM upgrade. The error popped up every time she opened a video file, and the printer driver (don't ask why) depended on WMP's DRM stack. Clearing the DRM folder fixed both problems.

Variations on the Same Issue

Sometimes the fix above doesn't cut it. Here are the less common culprits:

DRM Service Is Genuinely Corrupt

If the DRM folder keeps reappearing with the same error, the Windows Media Player DRM components might be damaged. Run this in an admin Command Prompt: sfc /scannow. If that finds corruption, let it fix, then restart and try the steps again.

Permission Problems

Some enterprise-managed machines lock down AppData. If you can't delete the DRM folder, take ownership: right-click the Media Player folder, Properties > Security > Advanced > Change owner to your account, then grant yourself Full Control. I've had to do this on domain-joined laptops where IT pushed a policy that blocked write access.

Third-Party DRM Conflicts

Old software like iTunes or some DVD copy protection tools can interfere. If you have anything installed that touches DRM—like SoundTaxi or similar—uninstall it, then repeat the folder delete. I've also seen a VPN cause this: some VPNs mess with local network services, and WMP's DRM upgrade gets confused about the connection status.

Windows Media Player Missing or Broken

On Windows 10/11 N editions (the ones without media features), WMP isn't installed by default. You need to add it via Settings > Apps > Optional Features > Add a feature > Media Feature Pack. If you're running a stripped-down version of Windows, that's your problem.

Prevention

Once you've fixed it, don't let it happen again. Here's what to do:

• Don't interrupt the DRM upgrade. If it starts, let it finish. Closing WMP mid-upgrade is the #1 cause of this error.
• Keep Windows updated. Microsoft patched a lot of DRM-related bugs in the Windows 10 21H2 and later updates. If you're still on an ancient build, you'll keep hitting this.
• Run Windows Media Player occasionally. I know nobody uses it anymore, but if it sits idle for months, the DRM components can get stale. Open it once a quarter, play a sample file—keeps the stack fresh.
• Avoid using DRM-protected files if you can. Convert them to MP3 or AAC. The old DRM scheme is a dead end, and Microsoft's support for it is minimal. If you have a library of purchased WMA files from the 2000s, re-rip them or find DRM-free versions.

This error is annoying, but it's not a hardware problem or a virus. It's just Windows being Windows—leaving a door half open. You walked in and closed it. That's the fix.