The software allows you to view inbox repair tool alternative your repaired files and confirm before saving them. Confirm and click on "OK." Select the location where you want to save the file. Once the file is selected, now click on the "Repair" and begin the repair process. If you want to stop the repair process, click on the "Stop" button.

Solution 4: Disable Antivirus and Firewall Temporarily

This blog talks about the causes behind Outlook synchronization errors and a few solutions to fix Outlook sync issues. We have shared five manual methods in this blog to resolve the Outlook syncing errors. Fix Outlook and Office 365 Errors 2025 Apart from this, we also discuss the Shoviv OST to PST Converter Tool, a professional way to repair, recover, and convert Outlook data files. This solution will be beneficial for users who are facing Outlook syncing issues because of corrupted PST or OST files.

Solution 7: Create a New Profile

Sometimes this process gets corrupted, and this leads to sync errors. We recommend using the automatic process and fix the issue with Wondershare Repairit for Email. This excellent software is easy to use and fixes the issue quickly. Whether it's a bigger file size or smaller, the software can repair all file types with any level of corruption. Once you have completed the steps to fix Outlook sync errors, kindly check if the error has been fixed or not. Knowing the reasons behind the Outlook sync issues will help us to fix this problem and prevent issues in communication and workflow.

Solution 8: Rebuild Outlook Data File (OST)

The other solution to fix Troubleshoot Office 365 Sync and Login Issues Outlook sync issues is recreating Microsoft Outlook profile. Follow each step carefully to resolve synchronization errors. Are you finding mismatches in the messages received in Microsoft Outlook in comparison to its web app?

Solution 1: Update the Outlook Application

Any problems are noted in a message that has "OST Integrity Check" as its Subject. The OST Integrity Check Tool (Scanost.exe) is installed when you install Outlook in the following locations, as appropriate for the Outlook version that you are running. For more information about the maximum allowed share of server resources on Microsoft Exchange Server 2007, see A user is consuming their maximum allowed share of server.

• The Inbox Repair tool scans the .ost or .pst file and makes sure that the file structure is intact.
• In Outlook 2007, this problem is more likely to occur if you also have the following registry data configured on your Outlook client.
• The OST Integrity Check Tool (Scanost.exe) is installed when you install Outlook in the following locations, as appropriate for the Outlook version that you are running.
• Or do you receive an error message while synchronizing your offline folder?
• Firstly, we will discuss a few manual methods to resolve this Outlook error and share the stepwise procedure of each method to successfully fix synchronization issues.
• For more information, see the More information section of this article.
• Follow each step carefully to resolve synchronization errors.
• So, follow the below steps to reset Microsoft Outlook settings.

Incorrect Outlook settings can also be one of the reasons behind Outlook synchronization errors. So, follow the below steps to reset Microsoft Outlook settings. After the files get repaired, restart the Outlook program to ensure that the Outlook syncing issues are resolved or not. You can see the synchronization status here and your new .ost file now. As it is the replication of the existing information of Exchange Server mailbox, so the complete process does not cause any damage to the information. See your Exchange Server administrator for this information or permissions.

[Answered] Secured OST to PST Converter for OST to PST Conversion

There can be several reasons for the Outlook synchronization error. Before we know the solutions, we will understand a few common causes of the Outlook sync problem. If disabling the software resolves the issue, then change your antivirus and firewall settings and add Outlook as an exception. Use the OST Integrity Check Tool (Scanost.exe) to check your .ost file for inconsistencies.