Outlook 2010 - OST Error

#1
I am facing the above problem when I open Outlook

"Unable to open your default e-mail folders. You must connect to your Microsoft Exchange Server computer with the current profile before you can syncronize your folders with your offline folder file."


I have tried to remove the profile and re-create it. The check mark in the Security to Encrypt Microsoft Exchange is there.

The only resoltuion to it is to reinstall the whole Outlook which when I do, the issue is resolved however that is not the ultimate solution as i work in a Banking company and face this issue every now and then. Can anyone help me find the actual root cause of the issue.

Thank You.
 


Taylor Wallis

Well-Known Member
#3
You should follow the methods following the given link, might it helps you in resolving the issue- OST Recovery Software to Recover Corrupt OST & Export OST to PST | KTools Software
This sounds quite irrelevant here. No need for any such commercial tools especially when it has no relation with the actual issue.
 


Taylor Wallis

Well-Known Member
#4
I am facing the above problem when I open Outlook

"Unable to open your default e-mail folders. You must connect to your Microsoft Exchange Server computer with the current profile before you can synchronise your folders with your offline folder file."
You should try the Integrity check tool, also known as scanost.exe. It's a freeware utility provided by Microsoft. It can scan corrupt OST file and fix it. Refer to this blog post to know how to use scanost.exe - Use scanost.exe (Integrity Check tool) to Repair OST File

Remember there's no need to use to any commercialware tool. Hope scanost.exe works here.
 


#5
If you want to restore OST files and don't want to spend money, you must try few add-on applications of Outlook client. You can use any of these features: Inbox Repair tool (ScanPST) or OST Integrity Checker (Scanost.exe). ScanPST and ScanOST utility provided by Microsoft and installed in mostly Microsoft Office version. First, Find out the OST file location

Windows 7 and Windows Vista: drive:\Usersuser\App\Data\Local\Microsoft\Outlook

Windows XP: drive:\documents and Settings\user\Local Settings\Application Data\Microsoft\Outlook

ScanPst.exe to scan and repair only a corrupted Outlook Personal folders (PST) file or an Offline Outlook Folder (OST) file, not your mailbox on the server. The utility determines whether the file structure is unscathed. If it is not unscathed, the ScanPst.exe resets your file your file structure and rebuilds the headers. Find the scanpst.exe location according to your Outlook version and Windows version (32 or 64bit):

Outlook 2013 (32bit) & Windows (32bit): Drive:\Program Files\Microsoft Office\Office15
Outlook 2013 (32bit) & Windows (64bit): Drive:\Program Files (x86)\Microsoft Office\Office15
Outlook 2013 (64bit) & Windows (64bit): Drive:\Program Files\Microsoft Office\Office15

Outlook 2010 (32bit) & Windows (32bit): Drive:\Program Files\Microsoft Office\Office14
Outlook 2010 (32bit) & Windows (64bit): Drive:\Program Files (x86)\Microsoft Office\Office14
Outlook 2010 (64bit) & Windows (64bit): Drive:\Program Files\Microsoft Office\Office14

Outlook 2007 & Windows (32bit): Drive:\Program Files\Microsoft Office\Office12
Outlook 2007 & Windows (64bit): Drive:\Program Files (x86)\Microsoft Office\Office12

Outlook 2003 & Windows (32bit): Drive:\Program Files\Common Files\System\Mapi\1033\
Outlook 2003 & Windows (64bit): Drive:\Program Files (x86)\Common Files\System\Mapi\1033\

Read more : goo.gl/CcrIC0

And ScanOst.exe tool is used to diagnose and fix the issues related to synchronization of OST files. It diagnoses broken OST file and mailbox, compares and tries to recover the dissimilarity of synchronization. It doesn't alter the mailbox. To run the OST Integrity Checker tool, you must connect to your exchange account. OST Integrity Check tool (scanost.exe) Location:

In MS Office 2010/2007 - Drive:\Program Files\Microsoft Office\Office_version

In MS Office 2000/2002/2003/XP - Drive:\Program Files\Common Files\System\MAPINT

Read more : goo.gl/ZWCJxK
 


#6
Outlook has it's own application to deal with corrupt files i.e. Scanost.exe. This tool is provided by Microsoft and is free of cost, so first try this and if it doesn't work for you then go for some professional converter tool.
 


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