Traditional Culture Encyclopedia - Photography major - Open the win7 IIS information manager, click the application pool, and the words "Error occurred while performing this operation" will appear.

Open the win7 IIS information manager, click the application pool, and the words "Error occurred while performing this operation" will appear.

The culprit is that the recently updated patch on IIS banned two services in your system and started the Windows Process Activation Service.

Try to remember to start related services. If not, you must restore them.

Then there is:

Search applicationHost.config

Replace c: \ windows \ system32 \ inetsrv \ config \ applicationHost.config with applicationhost.config.