Fix NS_E_LICENSE_REQUIRED (0XC00D0BBE) in Windows Media Player

The 30-Second Fix: Renew Your License Online

This error pops up when Windows Media Player can't validate the DRM (Digital Rights Management) license for a file. The quickest way around it? Try to renew the license online. I've seen this happen most often with files from old Zune purchases or protected WMA files from subscription services like Napster back in the day.

1. Open Windows Media Player.
2. Go to Tools (press Alt to show the menu bar if it's hidden) → Options.
3. Click the Privacy tab.
4. Check the box that says “Automatically update DRM licenses”.
5. Click OK.
6. Now try to play the file again. It'll prompt you to connect to the license server.

If your internet's working and the license server still exists (some older services shut down), this will fix it in under a minute. Had a client last month whose entire Windows 7 media library went dead after a fresh install — this single checkbox saved the day.

The 5-Minute Moderate Fix: Reset the DRM Folder

If the quick fix didn't work, the DRM license store itself is probably corrupted. Windows keeps these licenses in a hidden folder, and sometimes they get nuked during updates or system restores. This is where 90% of the real-world issues live.

Warning: Resetting this folder will remove all existing licenses. You'll need to re-download or re-acquire them for any protected files. Back up your media collection first if you have licenses you care about.

1. Close Windows Media Player completely.
2. Open File Explorer and type this into the address bar:
   

   %ALLUSERSPROFILE%\Microsoft\PlayReady

   Press Enter. If that path doesn't exist, use:
   

   C:\ProgramData\Microsoft\PlayReady

3. In that folder, delete everything you see. Yes, every file. Don't worry — they'll be recreated next time you play a DRM file.
4. If you don't see the folder at all, create it manually (right-click → New Folder → name it PlayReady).
5. Restart Windows Media Player and try playing the file again.

One thing I've noticed: Windows 10 and 11 are particularly picky about permissions here. If you get an “access denied” error when trying to delete files, take ownership of the folder first. Right-click it → Properties → Security → Advanced → Change the owner to your user account. Then try again.

The Advanced Fix (15+ Minutes): Reinstall Windows Media Player or Update PlayReady

Nothing worked? Then the core DRM stack is busted. On modern Windows 10 and 11, Windows Media Player is actually an optional feature you can disable and re-enable. This resets the entire DRM subsystem without nuking your whole OS.

Step 1: Reinstall Windows Media Player

1. Open Settings → Apps → Optional features.
2. Scroll down and find Windows Media Player. If it's listed, click it and choose Uninstall.
3. If it's not there, click Add a feature, search for “Windows Media Player,” and uninstall it from there.
4. Restart your PC.
5. Go back to Optional features → Add a feature → search for “Windows Media Player” and install it again.

Step 2: Update Microsoft PlayReady

PlayReady is the DRM engine behind WMP. Sometimes an old version causes this error. Download the latest runtime from Microsoft's site (search “Microsoft PlayReady runtime download”). Install it and reboot.

Step 3: SFC and DISM (When All Else Fails)

If reinstallation doesn't help, corrupted system files might be the culprit. Run these commands in an elevated Command Prompt (right-click Start → Command Prompt (Admin)):

DISM /Online /Cleanup-Image /RestoreHealth
SFC /SCANNOW

DISM fixes the image, SFC scans system files. I've seen this clean up persistent DRM problems that nothing else touched. It takes about 15 minutes, so grab a coffee.

What NOT to Do (From Experience)

• Don't download “DRM removal tools” from shady sites. They're almost always malware. I've recovered three machines this year alone that got crypto-locked from fake DRM fixers.
• Don't bother with registry edits. The PlayReady registry keys are locked down tight, and changing them often makes things worse.
• Don't just delete the file. If it's a one-off track you bought years ago, you might be better off downloading a DRM-free version from a store like Bandcamp or 7digital.

If you've tried all three fixes and still get the error, the file's license server is likely dead. Some older stores (like the original Zune Marketplace) no longer validate licenses. In that case, you're out of luck — but at least that's not a PC problem.