IIS 7 Manager can't write to web.config

chobo picture chobo · Feb 25, 2012 · Viewed 8.2k times · Source

Everytime I try to add / update settings through the IIS 7 Manager I get the following error.

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I'm running Windows 7 Ultimate (32-bit). I'm using a LocalSystem AppPoolIdentity

Answer

DotNetUser picture DotNetUser · Feb 27, 2012

Check if web.config has read only permissions checked.