# How-to guides

-   [How to enable or disable an experimental feature](/admin/how-to/enable-experimental-feature)
-   [How to diagnose an `Unknown Error` during login to your Sourcegraph instance](/admin/how-to/unknown-error-login)
-   [How to convert version contexts to search contexts](/admin/how-to/converting-version-contexts-to-search-contexts)
-   [How to troubleshoot a repository that is not being updated](/admin/how-to/repo-not-updated)
-   [How to configure submodules](/admin/how-to/submodule-configuration)
-   [How to remove users or edit users with the GraphQL API](/admin/how-to/mutate-user-api)
-   [How to manage feature flags with the GraphQL API](/admin/how-to/manage-feature-flags-with-graphql)
-   [How to troubleshoot a failure to update repositories when new repositories are added](/admin/how-to/update-repo-failure)
-   [How to purge deleted repository data from Sourcegraph](/admin/how-to/remove-repo#manually-purge-deleted-repository-data-from-disk)
-   [How to address common monorepo problems](/admin/how-to/monorepo-issues)
-   [How to import a set of internal repositories to Sourcegraph](/admin/how-to/internal-github-repos)
-   [Migrating code intelligence data from LSIF to SCIP (Sourcegraph 4.5 -> 4.6)](/admin/how-to/lsif-scip-migration)
-   [How to export search results](/admin/how-to/export-search-results)