Class Not Registered Error Prevents Device Manager from Opening

Discussion in 'Windows Vista Hardware' started by TheRogersinUSA, Oct 15, 2007.

  1. I have been running Vista Ultimate for 4-5 months. I just recently started
    to receive the pop-up error message 'Class Not Registered' when trying to
    open the Vista Device Manager. When I close the panel, nothing else happens
    -- i.e., Device Manager doesn't launch. I see from a few other posts (not on
    this site) that others have experienced this problem, but no resolution was
    provided. Can anyone help?
     
    TheRogersinUSA, Oct 15, 2007
    #1
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  2. TheRogersinUSA

    Rob Guest

    Have you tried typing devmgmt.msc in the Start - Search Area and trying to
    open from there?

    Rob

    --
    Red meat isn't bad for you....Blue, Green fuzzy meat is bad for you.

    Dell Dimension 8300 Desktop
    P4 3.0GHz
    1GB RAM
    Windows Vista Ultimate 32Bit
    ATI Radeon 9800 XT
    Creative SB Audigy 2
     
    Rob, Oct 15, 2007
    #2
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  3. TheRogersinUSA

    Rob Guest

    Have you been using a 3rd party Registry Cleaner? You may of deleted an
    important registry key that's preventing you from accessing Device Manager.
    If so do you think you may have a back up of the registry before you cleaned
    it?

    I'm not sure if this will help as it refers to XP:

    http://www.kellys-korner-xp.com/regs_edits/devicemanagerrestore.reg

    Maybe someone could look and see if it would work with Vista. Or maybe
    someone knows of the equivalent .reg file for Vista.

    Rob

    --
    Red meat isn't bad for you....Blue, Green fuzzy meat is bad for you.

    Dell Dimension 8300 Desktop
    P4 3.0GHz
    1GB RAM
    Windows Vista Ultimate 32Bit
    ATI Radeon 9800 XT
    Creative SB Audigy 2
     
    Rob, Oct 15, 2007
    #3
  4. No. Running devmgmt.msc in the Start - Search Area results in the same error.
     
    TheRogersinUSA, Oct 16, 2007
    #4
  5. Actually. I did just recently run a Registry Cleaner -- the Microsoft
    OneCare product from Microsoft's Website. Not sure whether the problem
    existed prior to running Microsoft's Registry Cleaner, but it did clean up a
    number of items. I'll run it again and see if it fixes the problem.
     
    TheRogersinUSA, Oct 16, 2007
    #5
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