JSI Tip 2872. 'Digital Signature Not Found' when you install an update or driver?

You may receive the subject error, if Windows 2000 incorrectly reads the digital signature and the local policies for Unsigned driver installation behavior and Unsigned non-driver installation behavior are set to Do not allow installation.

To work-around this issue, temporarily set the polices to Silently succeed, when updating a driver or installing a service pack or hotfix:

1. Start / Run / MMC / OK.

2. Press Add/Remove Snap-in, on the Console menu.

3. Press Add and select Group Policy and press Add.

4. Press Finish / Close / OK.

5. Navigate through:

    Console Root
    Local Computer Policy
    Computer Configuration
    Windows Settings
    Security Settings
    Local Policies
    Security Options

6. Right-click Unsigned driver installation behavior and press Security. Toggle the Local policy setting to Silently succeed and press OK.

7. Right-click Unsigned non-driver installation behavior and press Security. Toggle the Local policy setting to Silently succeed and press OK.


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