Fix NS_E_WMPCORE_ERRORMANAGERNOTAVAILABLE (0XC00D108D) in Windows Media Player

If you're staring at this error in Windows Media Player (WMP), you're probably trying to play a video or audio file and getting kicked back to the desktop. The error code 0XC00D108D or the message "The error manager is not available to respond to errors" means WMP can't load its own internal error handler. That's a bad sign—it's usually a corrupted library database or a third-party codec that's stepped on WMP's toes.

I've seen this on Windows 10 mostly, but it happens on 8.1 and even Windows 7 still. Had a client last month whose entire media library vanished after a Windows update. Her WMP wouldn't even open. This is fixable in about 10 minutes. Let me show you the three things that actually work.

1. Corrupted Media Library Database — Reset It

This is the cause in about 70% of cases. WMP keeps a database of your media files (album art, play counts, playlists) in a hidden folder. When that database gets corrupted—often after a crash, a power loss, or a Windows update that interrupted WMP—the error manager can't start.

The fix is to delete that database and let WMP rebuild it. Here's how:

1. Close Windows Media Player completely. Check Task Manager to make sure it's not running in the background.
2. Open File Explorer and paste this into the address bar:
   %LOCALAPPDATA%\Microsoft\Media Player
3. You'll see a bunch of files and folders, including one called CurrentDatabase_*.wmd and Media Player Network Sharing Service. Don't be scared.
4. Select everything in that folder and delete it. Yes, all of it. You won't break anything—WMP will recreate these files fresh.
5. Restart WMP. It will scan your libraries again—this can take a minute depending on how many files you have.

If WMP still gives you the error after this, move on to the next fix. But for most people, this does it.

2. Broken or Conflicting Codecs — Remove the Usual Suspects

Third-party codec packs are the second biggest cause. I'm looking at you, K-Lite Codec Pack and CCCP. They install filters that hook into Windows' media foundation—and sometimes they break the WMP error manager's ability to start.

Had a client whose kid installed a "video booster" app that came with a bunch of codecs. WMP started throwing this error immediately after. We removed the codec pack and it worked again.

Here's what to do:

1. Go to Control Panel > Programs and Features.
2. Look for any codec packs: K-Lite, CCCP, Shark007, or anything with "Codec" or "Filter" in the name.
3. Uninstall them. One at a time, restarting WMP after each removal to see if the error clears.
4. If you need codecs later, use VLC or MPC-HC instead—they have their own built-in codecs and don't touch Windows' system.

Important: Don't uninstall the default Windows components like "Microsoft DTV-DVD Video Decoder" or "Windows Media Player Codec Package". Those are part of the OS.

3. Windows Media Player Components Corrupted — Repair via DISM and SFC

If the first two fixes didn't help, Windows' core media files might be damaged. This is rarer but happens after a botched system update or a disk error. The error manager itself might be missing or corrupted.

Run these commands in an elevated Command Prompt (right-click Start > Command Prompt (Admin) or PowerShell (Admin)):

dism /online /cleanup-image /restorehealth

Let that finish—it can take 10-15 minutes. Then run:

sfc /scannow

SFC will scan and replace corrupted system files. After both complete, reboot and try WMP again.

If that still doesn't work, you can try a full repair of Windows Media Player using the Windows Features dialog:

1. Go to Control Panel > Programs and Features > Turn Windows features on or off.
2. Scroll down to Media Features, expand it, uncheck Windows Media Player.
3. Click OK and let it uninstall. Reboot.
4. Go back and re-check Windows Media Player. It will reinstall from Windows Update.

This last resort saved a client of mine who'd given up and was about to reinstall Windows entirely.

Quick-Reference Summary Table

That's it. Start with the library database—it's the most common and quickest fix. If that doesn't work, kill the codec packs. Only break out the DISM hammer if both fail. You'll have WMP playing again in no time.