By default, IIS only displays very basic error messages in a user's browser.
For troubleshooting a server error, you can change this behavior to show a more meaningful verbose description of the problem. Here's the same error as above, but with detailed error reporting:
The article will show how to enable detailed error messages on IIS.
Please note: You should only enable this when troubleshooting a specific issue. For security reasons, you should generally not display detailed verbose error messages to end-users.
To Enable detailed IIS Error messages:
Open Internet Information Services (IIS) Manager
Select "Error Pages"
Select "Edit Feature Settings"
Select "Detailed Errors"
Here's the above steps in more detail...
Step 1 - Open Internet Information Services (IIS) Manager
Open IIS Manager by pressing your Windows key + R (or Start Menu → Run) to open the Run dialog.
In the Run dialog type "inetmgr" and press Enter/Click OK.
Step 2 - Select "Error Pages"
In IIS Manager, select your website from the left-hand panel, and then select "Error Pages":
Step 3 - Select "Edit Feature Settings"
In the right-hand panel, select "Edit Feature Settings":
Step 4 - Select "Detailed Errors"
In the resulting dialog, select the "Detailed Errors" option in the "Error Responses" section:
Click OK to apply the changes.
Now when IIS encounters an error, the error message will sow significantly more detailed information than before.
