Yeah, that error is annoying—you're just trying to back up your DRM licenses and Windows throws a fit like it's doing brain surgery. Let's get it fixed.
The Quick Fix: Kill the Stuck Process
Most of the time, 0XC00D2744 means Windows Media Player (or its DRM service) thinks a backup or restore is still running, but it's actually hung up. You don't need to wait it out—you just force it to stop.
- Press
Ctrl+Shift+Escto open Task Manager. - Look under Processes for
wmplayer.exeordrmupg.exe. If you see either, right-click and select End Task. - Also check for
svchost.exeentries that might be running the DRM service—though you can't always tell by name. Safer to stop the service:
net stop "Windows Media Player Network Sharing Service"
net stop "Windows Media Player" 2>nul
Run those from an elevated Command Prompt (right-click Command Prompt, choose Run as administrator). If any service fails to stop, it'll list the error—but usually wmplayer.exe is the culprit.
After killing the processes, restart Windows Media Player and try the backup again. Go to Tools → Options → Manage Licenses → Backup Now. Should work on the first try.
Why This Works
The DRM system uses a single-threaded mutex—only one backup or restore operation can run at a time. If the previous operation crashed or closed prematurely, the mutex doesn't get released. So the system thinks it's still busy, and you're stuck in digital limbo. Killing the process frees that lock, allowing a fresh operation.
I've seen this on a client's accounting PC—they had a media server that kept crashing during DRM backups, and they couldn't back up new licenses for months. One task kill and it was done.
Less Common Variations
Sometimes the issue isn't a stuck process but a service that's actually hung in a bad state. Here's the next level:
1. The DRM Service Won't Die
If the service won't stop even after the commands, you might need to restart the whole computer. But do this first: open Services (services.msc), find Windows Media Player Network Sharing Service, right-click and Restart. That resets the DRM state without a full reboot.
2. Corrupted DRM Data Folder
Rare, but I've seen it. If the error persists after killing processes, the DRM folder might be corrupt. You can delete it—Windows will recreate it with default settings. But note: you'll lose any existing DRM licenses, so if you have protected content, you'll need to re-acquire licenses.
rmdir /s /q "%USERPROFILE%\AppData\Local\Microsoft\DRM"Then restart your PC and try the backup again. This is a nuclear option—only do it if you're okay with re-downloading licenses.
3. Conflict with Other DRM Software
Some older apps like iTunes or certain video editing tools use the same DRM infrastructure. If you have any running, close them before starting the backup. I once had a client with an old Sansa MP3 player software that kept the DRM busy—closing it fixed the error instantly.
Prevention: Don't Let It Happen Again
- Always close Windows Media Player properly—don't just kill it mid-operation.
- Wait for the backup to fully complete before doing anything else on the system. The process can take a few minutes, and it's easy to forget.
- Run backups on a schedule—do it monthly so you don't lose track of new licenses.
- Avoid third-party DRM cleaners—they often cause more problems than they solve.
The real fix is simple: clear the stuck process and move on. Don't overthink it, and definitely don't start deleting DRM folders unless you've tried everything else.