How to Fix .OST Error Detected in Exchange/OutlooK Profile

Exchange .ost file is created when Outlook is used in conjunction of Microsoft Exchange Server. Generally users are using OST file to work offline when Exchange Server is down. Sometimes users might face issues if there is corruption in OST file “Errors have been detected in the File Outlook .ost”.

What’s the reason behind this error?

There might be several reasons which can produce such types of error messages like; virus attack, Existence of unreliable internet, sudden shut down of Exchange Server, shut down of outlook, hardware and software failures etc.

How to Resolve this .OST Error Message

Exit Microsoft Outlook
Use Inbox Repair Tool to fix such types of error messages (see default location of this tool here; C:\Program Files\Microsoft Office\Office12)

This Windows will appear if Outlook application is running.

If the tool prompts for 'Profile name', 'Work Offline' or 'Connect', click on 'Connect'.
Select 'Scan all folders' option

choose 'Repair Errors' check box and hit the 'Begin Scan' tab.

If you are not able to fix this error message then try OST to PST Converter to resolve the issue. This OST Repair tool will fix .ost errors and fixes all issues related to OST file.