Errors have been Detected in your.ost File in Outlook

“There was this error message I got while trying to open OST file - "Error has been detected in the file c:\Documents and Settings\username\Local Settings\Application Data\Microsoft\Outlook\outlook.ost. Quit Outlook and all mail applications, and use Inbox repair tool (scanpst.exe) to diagnose and repair errors in the file." and everything stopped working from Mails to Calendar to Tasks. I have no idea how to go about this problem!”

The above error clearly indicates that the Offline Storage Table (OST) file is corrupted. There are various reasons for OST file to get corrupted, some of which include –

  • Oversized OST file
  • OST file header corruption
  • Sharing OST data file over the network
  • Improper system shutdown

These instances lead to OST file corruption. Though Microsoft Outlook application has built-in Inbox Repair utility called Scanost.exe to fix corrupt OST file, but this tool can only repair minor errors. Major issues with OST file cannot be fixed with Scanost.exe.

How to Fix Errors Detected in Outlook OST File?

Remo Repair PST is an Outlook PST Repair tool that will safely convert OST to useable PST file. This Outlook OST to PST converter is an advanced MS Exchange OST conversion software which easily converts corrupted OST file to PST file. It fixes OST errors and gets access to Outlook data. During conversion task this tool has the ability to fix OST errors and recover email folders along with Outlook attributes like notes, tasks, contacts, schedule, calendars, reminders, journals, RSS subscriptions etc. The utility re-generates a healthy PST file by extracting OST file data.


Steps to Repair Errors Detected in Outlook OST File:


Step 1: : Download and install the software on your system. Launch the tool and browse for the corrupted OST file to be repaired.

Errors Detected in Outlook OST File - Main Screen

Figure 1: Main Screen

Step 2: Select the appropriate option and proceed with the repair process

Outlook Errors Have Been Detected in the File OST  - Select Action

Figure 2: Select Option

Step 3: Now select the destination location where the fixed PST file has to be stored and click on Next button to start the repair process

Outlook Data File Errors Have Been Detected in the File OST - Select Destination

Figure 3: Select Drive

Step 4: When scanning is completed, the fixed PST file can be viewed along with other data

How To Fix Errors Have Been Detected in the File Outlook OST - Preview

Figure 4: Preview Window