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Thread: Error 800700C1

  1. #1
    Tania Guest

    Error 800700C1

    Well, i thought i had been stupid to accept the offer to
    get the new Windows Update software, but now i see that
    our big brother gave me no choice. The download process
    seems to go fine, but ends with

    Error 800700C1

    Windows Update has encountered an error and cannot
    display the requested page. You may find the following
    resources helpful in resolving the problem:

    This leaves me in a state where there is no choice to
    search for updates. So i guess i will never have any
    trouble downloading SP2, since Windows Update will never
    work again.

  2. #2
    myriad360 Guest
    I am not sure why it is doing this, searched the web and saw a lot of people
    have the problem, none have had success fixing it. Can't update Windows

  3. #3
    Juan Perez Guest

    Re: Error 800700C1


    I found this information some in a forums. Take a look:


    The offending file in question was SMIPI.dll

    You can get it off of the vista install disk (just search for it I forget

    the path) or another working system. It's under


    yes that is a real folder name (jeesh).

    You'll have to take ownership under properties>security>advanced to actually

    copy over it. Once it's replaced windows update ran fine.

    Had a bunch of other corrupted files that I haven't dealt with yet but this

    was the cause. Suggest running sfc/scannow anyway as that might have fixed

    something else.

    Good Luck!

  4. #4
    myriad360 Guest

    Re: Error 800700C1

    Thanks Jaun; however, I have a Dell, therefore, no install disc, just a
    recover disk with no dll file. Is there another place I can find this dll?

    Thanks again.


  5. #5
    myriad360 Guest
    Thanks, Jim. Replaced existing DLL with the above, still no difference. I
    suspect the above mentioned solution to have been successful because of the
    sfc/scannow command, but in my Windows, it says:

    "Windows Resource Protection could not start the repair service."

  6. #6
    Jim Byrd Guest

    Re: Error 800700C1

    Hi Myriad - Try the following in order:

    Procedure 1:

    - First, you will need to install or re-install the updated KB927891. See
    here: and here for a complete fix.

    - Then install the newly released 'standalone' version of Windows Update
    Agent 3.0, v. 7.0.6000.374, for 32 bit machines which is available here:

    It may say "Install is not needed since Windows Update Agent is
    already installed." If so, then run the exe with the command line switch
    /wuforce , like this:

    WindowsUpdateAgent30-x86.exe /wuforce

    to force the install.

    Now reboot. Now reboot again. (Yes, twice.)

    Now go back to Windows Update - what you just did should force a
    re-installation of the lastest update to the Windows Update software. Allow
    this and then try your updates again.

    If that doesn't fix the problem, then try

    Procedure 2:

    1. Go to and download Dial-a-fix
    v0.60.0.24 (2006-10-27) Here's a direct download link: and a
    secondary: from
    that page's download section, here: .

    2. Unzip it to a new folder at root with any name, e.g.

    3. Now double click on Dial-a-fix.exe in that folder.

    4. Click on the following:
    - Options/tooltips (just to get an idea of what it does in each
    :) )
    - Both boxes under Prep
    - The 'all' (top) box for Sections 2, 3 and 4 (which will automatically
    be set when you check 3)
    - In Section 3 click on 'Flush Software Distribution' and choose 'Yes'
    to force the deletion of the folder.
    - In Section 5, 'ActiveX controls/codecs', 'Programming
    cores/runtimes', 'Explorer/IE/OE/shell/WMP', and 'Object linking libraries
    (OLE)' only.
    - Click 'Go' . (Some of the re-registrations may take what seems like
    long time for some .dll's - Don't be impatient.)

    5. Reboot. Now Reboot Again. (Yes, twice.)

    Now try Windows Update again. If it still doesn't work, then re-do
    Procedure 2 in Safe mode (Section 2 will be greyed out.) and then try
    Windows Update again.

    See if that does the trick, and, again please post back with your

  7. #7
    TruckChick81 Guest

    Re: Error 800700C1

    I found this file
    e_07289f4cca5f6990" but I'm not sure what to do with it? Can you please

  8. #8
    blkbgn9 Guest

    Error 800700C1

    When trying to check for Windows updates I get the error code 800700C1. I
    have tried all of the things suggested on other threads on this board with no
    success. When I go to my internet options I get the message
    "C:\Windows\system32\ADVPACK.dll is either not designed to run on Windows or
    it contains an error. Try installing the program again using the original
    installation media or contact your system administrator or the software
    vendor for support." When I got that message I went to and
    downloaded RegCure to check my computer for errors or missing dll files.
    That did not work. I still get the same messages as before.
    I also had McAfee as my security on the computer. I have since uninstalled
    that to see if that was the problem, but it wasn't. I now have AVG 7.5 for
    my security as well as the Windows firewall.
    Any suggestions would be greatly appreciated. At this point I am ready to
    throw the computer out the window

  9. #9
    Bruceahz Guest
    Becky - did you ever get this resolved. I've had the same problem since at
    least last summer; it started after installing a MicroSoft update, and the
    only suggestion from MS was to reinstall Vista!

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