|Error code: 0x800B0100|
|Description: Invalid Signature|
As per T774033, when recorded in relation to Microsoft Antimalware software, this error code indicates that one or more of the scanning engine update files were not signed. Update the scanning engine by using Windows Defender.
As per QM974971, this is a bug in Windows Vista. A hotfix (post SP1) is available.
|Links: M974971, M200629, T774033|
Keywords: error code 0x800B0100 and Windows: Google - Bing - Microsoft - Yahoo
Keywords: Invalid Signature: Google - Bing - Microsoft - Yahoo
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