If you cannot open
showconfig.aspx page, you can compare
Include folders to identify all files which are not part of the default
Sitecore installation or are different from originals.
You can use following applications:
Include folder from fresh
Sitecore installation and copy it somewhere on your disk. Get
Include folder from your
Sitecore instance and copy it to the same folder.
Now using any of the folder diff tools, identify the differences between those two folders. You can search for
<database id="test" in those files.
Alternatively you can do a full text search on your
Include folder using Total Commander (Alt + F7) and search for
You can either delete the configuration entry or disable the configuration file by changing extension.
It is also possible that the change has been made directly in the
Sitecore.config file which is located in
App-Config folder. If you cannot find anything inside
Include folder, please check entire
As I understand, when you are trying to run a showconfig.aspx you get the exception. In that case you can use a tool to build the effective configuration that Sitecore would have build (eg. https://github.com/Sitecore/Sitecore-Config-Builder or https://github.com/ParTech/ScShowConfig) and then try to search for the problematic database.