Outlook 2007 The operation failed. An object could not be found - outlook reminders not working

The operation failed. An object could not be found - outlook reminders not working.
Tried everything from recreating her profile, outlook switches, deleteing reoccuring appts., deleteing ost file

 When her profile is recreated for the first time, calendar and reminders work, then two online archive ( we use microsoft online archive) appears and two mailboxes account for her.  Closing outlook and reopening, the multiple online archive and second account disappears and outlook calendar is back to the error and reminders not working. There is a tool “mfcmapi” that I downloaded when I open her profile with it I see two online archive folders and two accounts. There are multiple accounts and archive folders, and I think outlook is getting confused and throwing errors. Strange problem, never seen it before.

I think the problem started when she tried to have the cache mode enabled and something went wrong. She is no longer is cache mode.

Is there somewhere to delete the profile completely from the user folder local/romaing and registry. Could it be her network profile. Thanks for your help.
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jaya31Connect With a Mentor Author Commented:
Problem resolved.
We looked more deeply on the Exchange Server and turns out that user
domain\user had full access permission to herself under exchange full access permission, thats why everything was duplicating upon opening.

Thanks much for all your help and advise
Stacy BrownConnect With a Mentor Senior Applications AdministratorCommented:
You can delete mail profiles from Control Panel > Mail > Show Profiles

You can delete her Windows profile by going to Control Panel > System> Advanced System Settings and selecting the Settings button under the User Profile Section.

Of course, make sure you are logged in with an Admin or Local Admin account when you perform either of these steps.

You could also remove Outlook from the Windows Search Indexing.  This may be what's choking when you have her in Cached mode with all those archive loading.  Go to File > Options > Search > Indexing Options.  Click the Modify Button.  Uncheck All items having to do with Outlook.  Click Ok.  Click Close. Click OK.

The mail archives could also be the problem.  I would suggest that you move the Archives into her actual mailbox.  If you can't keep them there, then re-archive them using the Outlook 2010 tools and that may create a more efficient archive for you using the new Unicode standards.

I hope this helps!  Good Luck!
Iain MacMillanIT ManagerCommented:
if you have Exchange 2010 with this issue, then this MS post might help, and Op Failed can be fixed with a roll-up patch -- http://support.microsoft.com/kb/2763886 

I too think your archive arrangement may be causing some issues.  I would create a new profile and stabilise her actual mailbox connection only and get cashed mode working correctly and see what that gives you in terms of reminders -- you can also clean up the reminder function using a command line to launch Outlook - Start, Run and type Outlook.exe /cleanreminders
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jaya31Author Commented:
Thanks for the suggestions.
Let me clarify. We dont want the user in cache mode. The problem seemed to have started when we enabled cache mode and it didnt work. We disabled cache mode and the problem with the reminders appeared.
Creating a new outlook profile we see two online archive and two mailboxes in the navigation pane - the calendar,to-do list works, reminder work.
 However closing and reopening outlook, it only has one mailbox and online archive, the way its supposed to, but the calendar, to-do list, reminders errors.
Although  in the nav pane everything is showing correctly after closing and reopen, when we use the mfcmapi tool,  the outlook profile has two online archive and two mailboxes. Outlook is seeing multiple mailboxes and online archive folders in the backend, and thats where the errors are coming from. It seems that outlook is trying to cache her mailbox, which we dont want.

Deleted the local outlook folder containing ost files, created the outlook profile muliptle times. Logged into another computer with the user profile and still the same issue.
We have not tried recreating the windows profile (local & roaming) - that is our next step, unless there are other suggestions. Thanks much.
Iain MacMillanConnect With a Mentor IT ManagerCommented:
as i said, you may need to run the reminder cleanup command and maybe a few other commands to clean the mailbox, especially if you are getting the issues on another system, that would suggest the issue is on the mail server/mailbox rather than local system.
jaya31Author Commented:
The experts pointed in the right direction. But did not provide a resolution. The acutal problem was a specific rights issue found by our own troubleshooting.
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