Firefox: Remove "Microsoft DRM" from your plugins

Following up on the Adobe Acrobat post about removing unwanted plugins from Firefox I spotted another that I've left disabled for some time, "Microsoft DRM".

DRM is a plague causing more grief than good to consumers. It also serves as a method to restrict content to countries, even though it's the world-wide web and I have no interest in keeping this shit on my computer.

Normally I wouldn't post this up because at least this DRM plugin stayed disabled in Firefox, however I'm posting it because it's a bit trickier to get rid of.

If you delete "npdrmv2.dll" and "npwmsdrm.dll" from "C:\Program Files\Windows Media Player", it'll automatically restore it from "C:\WINDOWS\system32\dllcache".

This is because it's been embedded deep into the Windows operating system and protected by "Windows File Protection".

  • Copy the contents below into "removeDRM.bat" and save it onto your desktop.

del C:\Windows\System32\dllcache\npdrmv2.dll
del C:\Windows\System32\dllcache\npwmsdrm.dll
del "C:\Program Files\Windows Media Player\npdrmv2.dll"
del "C:\Program Files\Windows Media Player\npwmsdrm.dll"

  • Restart your computer into safe mode.
  • Double click "removeDRM.bat"
  • Restart your computer back into normal mode

That should be it! You can quickly check to see if the files are back, but they shouldn't be.

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Yeah that's right, get out and STAY out!

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