Fix: Windows Media Player is not installed properly and must be reinstalled.

By Ramesh, on December 3, 2009 41

You might have faced the problem, when you try to run Windows Media Player. An error dialog box appears “Windows Media Player is not installed properly and must be reinstalled.”

Literally it happens due to mismatch version of some core Windows Media Player files. Following reasons may cause the problem like this-

Windows Updates might have failed to installed Windows Media Player updates.
You might have patched Windows Media Player files like wmplayer.exe, wmp.dll and so on.

The error messages may differ, but primarily it state

Windows Media Player is not installed properly and must be reinstalled. Do you want to reinstall from Microsoft website?

WindowsMediaPlayerisnotinstalledproperly

By following guide, you can also get rid of following errors-

“The file wmp.dll has a version 12.0.XXXX.YYYY where 12.0.AAAA.BBBB was expected. Windows media player is not properly installed and must be reinstalled. Do you want to reinstall from Microsoft website?”

“The file wmplayer.exe has a version 12.0.XXXX.YYYY where 12.0.AAAA.BBBB was expected. Windows media player is not properly installed and must be reinstalled. Do you want to reinstall from Microsoft website?”

“The file wmploc.dll has a version 12.0.XXXX.YYYY where 12.0.AAAA.BBBB was expected. Windows media player is not properly installed and must be reinstalled. Do you want to reinstall from Microsoft website?”

The major version of Windows Media Player may differ as per your Windows and Windows Media Player, for case it is 12

How To:

1. Close all Windows Media Player instances and Run Command Prompt as Administrator

2. Execute the following command-

UNREGMP2.EXE /UPDATEWMPVERSION

Or

UNREGMP2.EXE /UPDATEWMP

3. That’s it, now you can re-launch Windows Media Player and you won’t get error message anymore.

Applies To:

Windows Media Player 11
Windows Media Player 12

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Yuri

Thank you very much christian, it works.
Bdo

I’m having the same problems and tried everything above…and still it doesn’t work. Any suggestions?
http://www.baidu.com baidu

Thank you so much for your tip, it resolved my issue which was bugging me for the last 2 days..
Harish

@chirstian

Thank you so much for your tip, it resolved my issue which was bugging me for the last 2 days..

Thank you so much…
john

@Christian..

Solved with your troubleshooting technique..

Thanks for the help
Virg

I have tried TROUBLESHOOTING and what CHRISTIAN suggest and COMMAND PROMT nothing works.
I have tried to turn of WMP 12 on my Windows 7 and still nothing. I get the message over and over.

Please Help!
http://www.evony.com/ christian

i found a solution…

this is for windows 7…
click start and locate windows media player in there…dont click, instead right click on it and properties…click the “shortcut” tab…check in the “target”, is it says this:(“%ProgramFiles*86%Windows Media Playerwmplayer.exe”) or something like that….delete “*86″…and the delete the rest after the qoutations…i forgot what it says the last time…but im pretty sure its like “prefetch=1″ or something…delete that…
and still in shortcut tab…check in the “startin” delete *86 too…and try opening the media player again…see if it works

Emily

That WORKED! Thank you because nothing else worked and I didn’t want to do a system restore. You are awesome!!!
use_vlc

Yes, this one worked flawlessly. Thanks a bunch! Even still I use vlc as main player, just have to use wmp for drm protected files…
rio

christian can you just tell me what kind of sentence must be after deleting this files ?????
James

Thanks for your great help, it works.
mememe

OMG – I JUST JIZZED MY PANTS! I have been trying to get my WMP to work ever since I first installed windows 7 when it first came out. This finally fixed it.

Tim

1. First, please delte the DRM folder on your computer. Depending on your OS, it can be found in different locations:
* Windows 2000 and XP: C:\Documents and Settings\All Users\DRM
* Windows 98: C:\Windows\All Users\DRM
* Windows Millennium Edition: C:\Windows\DRM
If you cannot find the folder, it may be ‘hidden’. Please use the following steps to view hidden files and folders.
* In Windows Explorer go to Tools > Folder Options > View
* Under ‘Hidden files and folders’ heading, make the following changes:
o Select ‘Show Hidden Files and Folders’
o Un-check ‘Hide Protected Operating System Files’
* Click the button ‘Apply to All Folders’. This will ensure the changes affect all folders on the system.
Kate

Sorry, I run Windows XP. On Windows XP the resolution is:

Start -> Run -> Type in: %SystemRoot%\inf\unregmp2.exe /UpdateWMP -> OK

Besides, I found a solution to my problem:

1. Uninstall Windows Media Player 11 and Restart.
2. Uninstall Windows Media Format 11 Runtime and Restart.
3. Reset existing DRM License Key by deleting the contents (hidden) of DRM Folder:

C:\Documents and Settings\All Users\DRM\

4. Install Windows Media Player 11.
5. Go to Microsoft secure server for WMP DRM individualization.

Thanks.

Bas

Thanks that worked for me too.
http://www.facebook.com/karaokebastard Christopher Robin

Yay, your Start/Run solution worked where others failed. Thanks! :-)

Kate

1. I receive this message:

“Windows Media Player is not installed properly. Reinstall the Player.”

when WMP11 opens DRM protected videos as well as when trying to start WMP DRM individualization process at Microsoft secure server:

http://drmlicense.one.microsoft.com/Indivsite/en/indivit.asp

2. The problem appeared after System restore to a previous restore point, made a day earlier, when WMP11 played DRM protected videos without problems.

3. The above solution did not work as such a file “unregmp2.exe” does not exist on my C:\ drive.

4. Other solutions ?

Thanks

http://www.windowsvalley.com Author

unregmp2.exe is located in C:\Windows\System32 folder. So move to that folder and execute the given command. Like:
C:\Windows\System32>unregmp2.exe /UPDATEWMP