| Event Id | 20 |
| Source | Windows Update Agent |
| Description | Installation Failure: Windows failed to install the following update with error <error code>: <update>. |
| Event Information | According to Microsoft: This problem occurs when Windows Automatic Updates tries to start the storage engine to update the Extensible Storage Engine (ESE) database. When Windows Automatic Updates tries to start the storage engine, the storage engine encounters a problem in the transaction logs that belong to the database. When Windows Automatic Updates tries to download updates on a Microsoft Windows Server 2003-based or Microsoft Windows XP-based computer, an access violation error may occur in the Esent.dll file. |
| Reference Links | When Windows Automatic Updates tries to download updates on a Windows Server 2003-based or Windows XP-based computer, an access violation error may occur You receive error messages when you use Windows Update through a proxy server or a firewall How to enable and to disable Microsoft Update You visit the Microsoft Update Web site instead of the Windows Update Web site |
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