Error 0x80070021 When Backing up Outlook 2007

[Jenks318]

Receiving Error 0x080070021 when using the backup option in Outlook 2007.
The backup does work for my archive files, but not the main PST file. I am
using google sync to sync calendars. I have shut it down with no change. I
booted into safe mode and the backup worked fine so I know it is some add on
that is keeping my PST file open. Is there any easy way to diable add ons so
that I do not have to unistall everything and use trial by error to track
this down. Vista Home Premium, Outlook 2007 Enterprise .
Thanks
Jerry

 

[Milly Staples [MVP - Outlook]]

The only way to rule out an add-in that is causing the problem is to run
Outlook in safe mode, disable all add-ins, then run outlook normally and
enable them one by one until you get the error.

--
Milly Staples [MVP - Outlook]

Post all replies to the group to keep the discussion intact.
How to ask a question: http://support.microsoft.com/KB/555375


After furious head scratching, Jenks318 asked:

| Receiving Error 0x080070021 when using the backup option in Outlook
| 2007. The backup does work for my archive files, but not the main PST
| file. I am using google sync to sync calendars. I have shut it down
| with no change. I booted into safe mode and the backup worked fine
| so I know it is some add on that is keeping my PST file open. Is
| there any easy way to diable add ons so that I do not have to
| unistall everything and use trial by error to track this down. Vista
| Home Premium, Outlook 2007 Enterprise .
| Thanks
| Jerry

 

[Jenks318]

I removed all Add-ins while in safe mode. I rebooted and started Outlook.
With all of them diabled, I got the same error when using the back up option
under file. Any suggestions?

Jerry