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Windows Update Error: 0x800700C1

Discussion in 'Windows XP' started by kirksfam, Apr 20, 2004.

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  1. kirksfam

    kirksfam Thread Starter

    Apr 20, 2004
    I have XP Pro. All of a sudden, I can't get Windows updates. Instead, I keep getting this error message: 0x800700C1

    Can anyone help?

    Thanx - kirksfam
  2. Couriant

    Couriant Trusted Advisor

    Mar 26, 2002
    First Name:
    Can you type the exact message please?
  3. Elvandil


    Aug 1, 2003
    Try resetting the default security provider for your machine. That error is related to an inability to check your license.

    Start the computer. Press the F8 key during startup to start the computer in Safe mode.
    Start Registry Editor (Regedt32.exe).
    Delete the following keys in the Windows registry:

    Quit Registry Editor.
    Restart the computer.

    Do you have a Dell? This can happen when Dell Assistant is installed.
  4. kirksfam

    kirksfam Thread Starter

    Apr 20, 2004
    Tidus4Yuna, I have pasted the entire error message below. Elvandil, I will reset the security defaults right now.

    I have a Gateway, with some sort of Gateway Assistant installed. I've had the computer for over 2 years and never experienced an update problem. :confused:

    Thank you both for responding. I'll let you know what happens with my reset.


    Windows Update Error

    Windows Update has encountered an error and cannot display the requested page.

    Select from any of the following pages for information about Windows Update services, or send us your feedback.

    Windows Update Home Page
    About Windows Update
    Support Information

    You can also get online support if you are having problems with Windows Update.

    Send error number to Microsoft (0x800700C1)
    Note This sends error information but does not create a support incident; you may or may not receive a response.
  5. kirksfam

    kirksfam Thread Starter

    Apr 20, 2004
    Hey -

    I tried to reset the Default Security Provider, but ... the designated keys were not in the Windows registry. I rebooted in Safe Mode, opened the Registry Editor, and looked for:


    "Cryptography" wasn't there.

    Then I looked for:


    "S-1-5-20" wasn't there. ("S-1-5-18" was there, and the next one was "S-1-5-21")

    I have been trying to repair the problem for a few weeks now. Maybe I previously deleted those keys during one of those tries.

    Any more suggestions?

    Thanks -
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