Hi William,
I'm Diane and I'm happy to help you today.
"We're sorry but..." error
Without knowing more, I can't say that the advice you were given was the best. Using the scrub tool should be used as a last resort when there are issues with office.
In Outlook alone there are Favorites, Quick Steps, Rules, as well as email addresses deemed safe so Outlook can display their attachments.
What type of email account do you have configured in Outlook? POP, IMAP, Outlook.com, or Microsoft Exchange?
For POP or outlook.com / Exchange, all of those are stored in the mailbox or pst file and only custom ribbons need to be exported or backed up.
With Exchange, they will sync down from the server, for POP you need to use the old pst - don't import, open it and use it as the default data file.
With IMAP, they are in the data file and scrub removes the data file. The only way you could reuse the data file is by exporting the profile from the registry. But the problem could be with the profile, and that would bring it back.
Rules will need to be exported - Rules and Alerts dialog > Options > Export.
Favorites, VBA project files are here:
C:\Users%username%\AppData\Roaming\Microsoft\Outlook
Favorites are in [profile name].xml - typically Outlook.xml
Signatures: C:\Users%username%\AppData\Roaming\Microsoft\Signatures (You'll need to assign the signature to the account.)
Quick Steps are stored in the data file and would need to be exported and imported using MCFMAPI.
Same for any custom views.
Autocomplete file - Stream_Autocomplete_0_[code].dat is here - if you have more than one, you want the largest.
C:\Users%username%\AppData\Local\Microsoft\Outlook\RoamCache
After setting up outlook, send a message then copy the old autocomplete to the folder and rename it, replacing the newly created file. (Use this same method if you make a new profile and want to restore the autocomplete.)
For any account type: custom ribbon files are here - C:\Users%username%\AppData\Local\Microsoft\Office
Browse both of these folders for other files you might want to backup - Templates, UProof (custom dictionary files), Excel\XLSTART (for personal. XLSB)
C:\Users%username%\AppData\Local\Microsoft
C:\Users%username%\AppData\Roaming\Microsoft\
Let me know how it goes, I'm here to help you further if needed.
-- Diane