IIS 7.5 Unable to write configuration file

Posted by flumeware on Server Fault See other posts from Server Fault or by flumeware
Published on 2012-09-21T18:11:47Z Indexed on 2012/10/05 15:40 UTC
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I have a fault regarding IIS 7.5 on Win Server 2008 R2, whenever I try to change any site bindings or start an application pool I get the error below:

Filename: \\?\C:\Windows\system32\inetsrv\config\applicationHost.config
Error: Cannot write configuration file

the application pools run as network service. None of the sites that are running have been affected however their configuration cannot be changed

UPDATED 05/10/2012

A reboot fixed this issue, however I am curious to know what caused it in the first place.

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