We have a couchbase installation on a Windows 2008 R2 server that got corrupted (this was from before my tenure, now I want to clean it up). There is no add-remove entry in the Programs and Features list. There is no active service in services.msc. However, something still thinks Couchbase is installed. Shy of wiping the box (we aren't quite to "redeploy test environment servers at the push of a button" altho I'm working on it), how can I ensure that all remnants of couchbase installs prior are now gone? I believe the previous install was in the Couchbase 2.x range, but it may have been 1.7+ Running the installer again gives "Installer needs to update registry value in order to upgrade from the previous version. Please run installer again to continue."