NS_E_DRM_UNABLE_TO_INITIALIZE (0XC00D271D) Fix

Cause 1: Corrupted DRM data store

This is the most common reason you're seeing 0XC00D271D. The DRM (Digital Rights Management) subsystem keeps a local store of licenses in a hidden folder. If that folder gets corrupted — usually after a Windows update, a crash, or a disk error — the whole thing falls apart. Media Player or any app using Media Foundation can't initialize, and you get this error.

The fix is to delete that store. Windows rebuilds it automatically when you play protected content again. Don't worry about losing licenses you paid for — as long as you have internet, they can be re-downloaded from the provider.

1. Close all programs that could use DRM — Media Player, Edge, Netflix app, anything playing video or music.
2. Open File Explorer. In the address bar, type %PROGRAMDATA%\Microsoft\PlayReady and press Enter. (Note: %PROGRAMDATA% points to C:\ProgramData on most machines.)
3. You'll see a folder called Cache. Right-click it and select Delete. Windows will ask for admin permission — say Yes.
4. Now go to %PROGRAMDATA%\Microsoft\Windows\DRM. Delete the entire contents of this folder. You can't delete the folder itself — that's fine, just the files inside.
5. Restart your computer. After reboot, open Media Player and try to play something protected. The DRM store gets rebuilt fresh.

What you should see: After the reboot, if you open Media Player and play a protected file, you'll see a brief "Acquiring license" or "Setting up DRM" message. That's normal. Let it finish. If the error doesn't come back, you're good.

If the folders aren't there, don't panic. That means you either don't have PlayReady installed or the DRM store is completely missing. Skip to Cause 2.

Cause 2: Corrupted or missing DRM system files

If deleting the store didn't work, the problem is deeper. The DRM component's DLL files might be unregistered, missing, or corrupted. This often happens after a botched Windows update or a virus removal tool that went too far.

We'll re-register every DRM-related DLL. This is safe to run and won't break anything.

1. Right-click the Start button and select Windows PowerShell (Admin) or Command Prompt (Admin).
2. Copy and paste the following commands one at a time, pressing Enter after each. Wait for each to say "succeeded" before doing the next:

regsvr32 atl.dll /s
regsvr32 mf.dll /s
regsvr32 mfplat.dll /s
regsvr32 mfmpeg2srcsnk.dll /s
regsvr32 msmpeg2vdec.dll /s
regsvr32 evr.dll /s
regsvr32 playready.dll /s
regsvr32 drmclien.dll /s
regsvr32 drmk.dll /s
regsvr32 drmv2clt.dll /s
regsvr32 wmvdspa.dll /s
regsvr32 wmvdecod.dll /s

After all commands run, close PowerShell and restart your PC.

What you should see: Each command should return a small popup saying "DllRegisterServer in [filename] succeeded." If you get an error about a missing DLL, write down the name — you'll need to repair your Windows installation (that's Cause 3 territory). If all succeeded, try playing protected content again.

Cause 3: Windows Media Player or Media Foundation feature is disabled

This one's sneaky. Sometimes a Windows update or a "debloater" script turns off Media Features — specifically Media Player and Media Foundation. Without these, DRM can't work at all. You'll get the exact same 0XC00D271D error.

1. Open Control Panel (press Win+R, type control, press Enter).
2. Go to Programs and Features.
3. On the left, click Turn Windows features on or off.
4. Scroll down to Media Features. Expand it.
5. Make sure Windows Media Player is checked (the box should be filled — not empty). Also check Media Foundation if you see it (on some builds it's hidden under a different path). If it's already checked, uncheck it, click OK, restart, then come back and recheck it.
6. Click OK. Windows will apply the changes — this may take a few minutes.
7. Restart your PC.

What you should see: After reboot, Windows will likely say "Preparing Windows" or "Configuring updates." That's fine. Once you're back in, check if the error is gone.

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