I recently upgraded to Windows 10. Each time I launch Terdata Studio I get following error message.
"History View plugin Activation error.Connection creation for HISTORY database failed."
"The conglomerate (16) requested does not exist."
I didn't had any issue using Studio on older version of WIndows.
The SQL History is stored in a Derby database in your workspace, which is created in your <USER> directory. Did you copy your workspace directory when you upgraded your OS? Something may not have copied or become corrupted? Try renaming your workspace directory so that it will create a new workspace when you launch Studio. The SQL History can be exported from your old system into a file, and imported when you launch with the new workspace.