While converting it was easy, repairing it was also quite basic to process. To execute this, you need to have a good tool with yourselves. Wondershare Repairit for Email fixes all OST file issues with ease. While it is your go-to solution, it provides exceptional repair services.

I can't repair corrupted Outlook .ost file

If anyone can get an answer from microsoft on this issue I’d appreciate it. Any MS techs can contact me if they need further information or analysis. I’ve created a ticket today with Rackspace to see if their other customers are having this issue but I’m not hopeful on hearing back from them. In addition, you could open outlook in safe mode, maybe some add-ins affect the outlook. You could Right-click the Start button, and click Run, type Outlook.exe /safe, and click OK.

Part 1: Can OST Files Be Rebuild?

I have 2 computers and both have been facing the same issue. You can check the location of your Outlook Data Files in exchange connectivity diagnostic Outlook.

Method 3: Convert OST to PST

You might be working on something Outlook Login Issues Troubleshooting important across it when it happens. As you said Outlook E3 licenses should support at least 100GB of data & there’s no excuse why it can’t support OSTs above 50GB when they offer twice that space. Refer to this blog Solutions To Fix Error – "Errors Have Been Detected In The File Xxx.Ost" Solutions To Fix Error – "Errors Have Been Detected In The File Xxx.Ost" for the solution to this OST error. This article offers to rebuild the OST file without putting you in any difficulty.

What are the major Reasons of OST Corruption and how to Fix it

There may be items in the backup file that you might be able to recover that the Fix Outlook and Office365 Sync Issues Inbox Repair tool couldn't. You can create a new Outlook Data File and drag the items in the Lost and Found folder into the new data file. After you've moved all the items, you can remove the Recovered Personal Folders (.pst) file, including the Lost and Found folder. To create a new Outlook Data File, go to Create an Outlook Data File. If you're using an Exchange email account, you can delete the offline Outlook Data File (.ost) and Outlook will recreate the offline Outlook Data File (.ost) the next time you open Outlook.

Method 1: Deleting Outlook OST File and Recreating It

• We are aware that OST files are directly connected to the Outlook email.
• Virus attacks can directly attack the OST file, which would disrupt its data.
• I have 2 computers and both have been facing the same issue.
• Wondershare Repairit for Email fixes all OST file issues with ease.
• The Inbox Repair tool checks the Outlook data files on your computer to see if they're in good shape.
• With an OST file in your hand, you can even retrieve it if it gets corrupted.
• Confirmed user can log on to OWA (Office 365 webmail) without issue.
• While this is an effective model, the discussion would revolve around all possibilities.
• I used the following combination of techniques to get the user working.
• If the problems occur across the synchronization of the OST file, it would be damaging.

As you change the extension, relaunch Outlook to rebuild your OST file. The first solid question that comes to mind is whether OST files are rebuildable. We are aware that OST files are directly connected to the Outlook email. The question mentioned above is thus definite in such a case.



The file would get inaccessible and won't update in any case. To the ones that said 50Gb are more than enough for most people,… well we are in 2020 & I can assure you that more than half of the accounts we manage are way above 50Gb, close to 100Gb actually. Only way to restore Outlook 2016 (Windows) functionality was to create a new profile; this worked, and a new OST file was created. On the next screen, access the "Find File" option if you are unaware of the location. If you know the location, click on the "Add File" tab and browse it.