'"Unable to perform" issue in IIS Manager (localhost)

When I'm trying to open any app in IIS Manager (local machine) like CGI, Handler mappings etc. I got an error There was an error while performing this operation:

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I'm unable to find out this issue.



Solution 1:[1]

I installed the hosting bundle again. i.e. repair and then checked if the iis_usr has all access for the wwwroot folder. This resolved the problem for me.

Sources

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Source: Stack Overflow

Solution Source
Solution 1 V_V