I have a sitecore site. I installed Glimpse. I don't really like how it behaves with sitecore. I I installed it. When I go to the site, it is completely broken. I get a 500 error. Totally blank screen. I can even get the code to step into application_start. In IIS I check for configuration errors, but no dice. No error written to event log. If I reinstall glimpse, it all works.
If you installed Glimpse using Nuget then you remove it by following the uninstall instructions on the Removing Sitecore.Glimpse page:
To remove just the Sitecore extension to Glimpse run the following command in the Package Manager Console:
uninstall-package sitecore.glimpse
To then completely remove glimpse from your web application run the following commands:
uninstall-package glimpse.aspnet
uninstall-package glimpse
Note: when uninstalling glimpse.aspnet the following line will need to be added back into the section.
<validation validateIntegratedModeConfiguration="false" />
There are additional options listed on that page to Block Access via a Security Policy or simply Disabling Glimpse without removal also.