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Fix: "Invalid security token" when updating Windows Media Center on Windows 8



Speed Up My PC

Yesterday one of my clients called me and he told me that while updating Windows Media Center on Windows 8, he received an Invalid security token error. I had never heard of this issue before so I did some investigation about this error message and located out that may be caused on account of bad or corrupted Windows Media Center Library. So I thought we would rebuild the Windows Media Center Library.


Invalid security token

The Library folder can be a system protected file. So first we have to enable Show Hide Files & Folder and Show Hide system protected file at the same time.


  • Go to Windows 8 Menu screen

  • Type in Folder Options and select Settings and select Folder Options


image thumb22 Fix: "Invalid security token" when updating Windows Media Center on Windows 8


  • Now click the View Tab to check out Hidden Files and Folders section.


image thumb23 Fix: "Invalid security token" when updating Windows Media Center on Windows 8


  • Then click on “Show hidden files, folders and drivers” & Uncheck on “Hide protected operating system files



Rebuild Windows Media Center Library

Now that you've enabled these options to keep to the below steps:


  • Press Win + R and type in %Programdata% and press Enter

  • Then type Open Microsoft folder, then eHome

  • Now you’ll view a file called mediacenterdatastore.DB. Delete that file and reboot it


After the reboot the Windows Media Center did actually work fine. I am sure until this way will help you too, in the event you face an identical problem.

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