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I receive an error:

Windows could not start the Windows Event Log service. Error 1747: The authentication service is unkown.

Any idea what can cause this?

64bit W2008Web the service is indeed not running.

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Had similar issue with Windows 7 machine recently & the following command did the job: netsh winsock reset (although Windows was re-installed 2 days later anyway for other reasons, but was working fine in meantime). Have a look at this article maybe (it has more steps which I did not performed as I have found this link after Windows was re-installed). –  LazyOne Jun 16 '11 at 14:44
Thanks but I did all that already - not working unfortunately. Any other ideas? –  Pleun Jun 16 '11 at 15:30

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