As we know, many solutions are available on the web that provides an easy solution to fix the error from the OST file, and Bitdataconversion OST Recovery tool is one of them. Using this tool, Outlook users can fix errors from OST file, restore deleted items, and import OST to PST, Outlook Profile Stores, Exchange Server, and Office 365. Using this tool, users can also save OST to EML, MSG, HTML, RTF, Cal, Cal, and vCard format.
Restore OST from Backup. The best way to fix the OST errors is to replace the damaged OST with a backed-up copy. …
Open MS Outlook in Safe Mode. …
Repair OST by Using Inbuilt Inbox Repair Utility. …
Recreate OST File.
Whether you’re using an Exchange, Office 365, or Outlook account, to fix issues with a .ost file, close the email app, and then use these steps:
Open Control Panel.
Quick Tip: If you’re using only the default profile named “Outlook,” you can type this path: %LOCALAPPDATA%\Microsoft\Outlook to jump directly to the location of the .ost file, and skip to step No. 12. Otherwise, continue with the steps below.
Click on User Accounts.
Click the Mail option.
In the “Mail Setup” experience, click the Show Profiles button.
Select the profile with the account you want to fix. (The default profile is called “Outlook.”)
Click the Properties button.
Click the Email Accounts button.
Click the Data Files tab.
Select the broken account.
Click the close button for the “Accounts Settings,” “Mail Setup,” and “Mail” windows.
Right-click the .ost file for the account having issues, and select the Delete option
Once you complete these steps, open the desktop version of Outlook again to recreate the .ost file for the account you intend to repair.
This is another method by which you can fix errors from OST Files