Knowing your server/client setup will help future respondents.
With Outlook open,
Tools/Options/Preferences Tab/Journal Options. Uncheck the whole litter. When all check boxes are empty select the AutoArchive Journal Entries button and set theoptions to Clean out items older than 1 day and Permenately Delete. This will stop the recording and take out the trash.
If you are able to catch the Journal Folder the first time it is used you will be able to specify the never ask again and do not keep entries options.
As far as specific registry work call:
Microsoft Tech Support
Outlook (425) 635-7031