WMP NS_S_WMPCORE_COMMAND_NOT_AVAILABLE (0X000D1105) Fix

Quick Fix (30 seconds) – Reset WMP settings

Most of the time this error means WMP's library has a bad entry. Had a client last month whose entire music library showed this error after a hard crash. Here's the quickest way to shake it loose:

1. Close WMP completely – check your system tray too.
2. Open a Run box (Win + R) and type:

   %appdata%\Microsoft\Media Player

3. Delete everything in that folder. Don't worry, WMP rebuilds it.
4. Reopen WMP. It'll scan your music/video folders again. Try the file that errored.

If it still errors out, the file itself might be the problem. Try playing a different file to confirm. If that works, your file's codec is the issue – skip to the moderate fix below.

Moderate Fix (5 minutes) – Re-register WMP core components

The command-not-available error often comes from WMP's COM components getting out of sync after a Windows update. I've seen this on Windows 10 22H2 and Windows 11 23H2 alike. Here's how to re-register the critical bits:

1. Open an Admin Command Prompt – search for cmd, right-click Run as administrator.
2. Run these commands one at a time:
   

   regsvr32 /i wmp.dll

   
   

   regsvr32 /i wmploc.dll

   
   

   regsvr32 /i wmpps.dll

3. You'll get a success message for each (or a 'already registered' – fine).
4. Reboot – don't skip this. WMP needs a fresh start.

If the error persists, try repairing WMP via Windows Features. Go to Control Panel > Programs and Features > Turn Windows features on or off. Uncheck Windows Media Player, reboot, then recheck it and reboot again.

Advanced Fix (15+ minutes) – Full library and component reset

Okay, the simple stuff didn't work. This error can hide deeper – usually from a corrupted library database that WMP won't let go of. I had a small business client whose accounting machine showed this on every file. It turned out a Windows update had borked the Media Player database. This fix nukes it completely:

1. Stop WMP services. Open an Admin Command Prompt and run:
   

   net stop wmpnetworksvc

   
   

   net stop wmplocalsvc

2. Delete the library database. Go to:
   

   %userprofile%\AppData\Local\Microsoft\Media Player

   
   Delete the Media Player folder entirely. Yes, all of it.
3. Delete the old library cache. Go to:
   

   %userprofile%\AppData\Local\Microsoft\Windows Media\

   
   Delete everything inside. This is where playlists and thumbnails get stuck.
4. Clean registry remnants. Open Regedit (Win + R, type regedit). Navigate to:
   

   HKEY_CURRENT_USER\Software\Microsoft\MediaPlayer

   
   Right-click and delete the Player key. This resets your settings. (Export it first if you're nervous – I've never needed a restore.)
5. Reboot and open WMP. It'll act like a fresh install.

If even that fails, the file's codec is probably toast. Install the K-Lite Codec Pack Basic (free, no bloatware). Reboot, and try again. I've never seen this error survive that combo.

Pro tip: If you're on Windows 11, the old WMP is still available – enable it via Windows Features. But honestly, I'd recommend switching to VLC or MPC-HC for anything beyond basic playback. This error is WMP's way of telling you it's on life support.