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1. Repair Ost File Outlook 2016 Windows 10
2. Outlook 2016 Repair Tool

You can use the Inbox Repair tool (SCANPST.EXE) to diagnose and repair errors in your Outlook data file. The Inbox Repair tool checks the Outlook data files on your computer to see if they're in good shape.

You might want to use the Inbox Repair tool in the following situations:

Sep 13, 2018 - FIX: Steps to fix a corrupted pst or ost outlook data file. By Kevin Arrows. Office 2016 (64-bit): C: Program Files (x86) Microsoft Office Office 16. How to fix common problems with Outlook.pst and.ost data files. Or when a data file just won't open in Outlook 2016 or previous. Proceed with the repair and create a log file with.

• You receive a message that Outlook can't open your data file

• You receive a message that Outlook can't open the set of folders

• You think your Outlook data file may be damaged

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.

Notes:

• The Inbox Repair tool doesn't connect or analyze any data stored in an Exchange mailbox. The tool only looks for errors (corruption), and if there are any, gives you the opportunity to allow the tool to fix those errors. If you can't start the Inbox Repair tool, you should try to repair your Outlook program.

• We recommend backing up your existing Outlook data file before you start the Inbox Repair tool. For more information, see How to back up an Outlook data file.

Repair an Outlook data file (.pst) file

1. Exit Outlook and browse to one of the following file locations:

   • Outlook 2019: C:Program Files (x86)Microsoft OfficerootOffice16

   • Outlook 2016: C:Program Files (x86)Microsoft OfficerootOffice16

   • Outlook 2013: C:Program Files (x86)Microsoft OfficeOffice15

   • Outlook 2010: C:Program Files (x86)Microsoft OfficeOffice14

   • Outlook 2007: C:Program Files (x86)Microsoft OfficeOffice12

2. Open SCANPST.EXE.

3. Select Browse to select the Outlook Data File (.pst) you want to scan. If you need help locating your Outlook Data File, see Locating the Outlook Data Files.

   Note: By default, a new log file is created during the scan. You can choose Options and opt not to have a log created, or you can have the results appended to an existing log file.

4. Choose Start to begin the scan.

5. If the scan finds errors, choose Repair to start the process to fix them.

   Note: The scan creates a backup file during the repair process. To change the default name or location of this backup file, in the Enter name of backup file box, enter a new name, or choose Browse to select the file you want to use. You may need to run the tool several times in order to repair your Outlook Data File. In some cases, items may not be recovered if they were permanently deleted or corrupted beyond repair.

6. When the repair is complete, start Outlook with the profile associated with the Outlook Data File you just repaired.

What happens after you repair an Outlook Data File?

In the Folder Pane, you might see a folder named Recovered Personal Folders that contains your default Outlook folders or a Lost and Found folder. Although the repair process might recreate some of the folders, they may be empty. The Lost and Found folder contains any folders and items recovered by the repair tool that Outlook can't place in their original structure.

Create new data file

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, see Create an Outlook Data File.

Recover items from the backup (.bak) file

If you can open the original Outlook Data File, you might be able to recover additional items. The Inbox Repair tool creates a backup file with the same name as the original, but with a .bak extension, and saves it in the same folder. There may be items in the backup file that you might be able to recover that the Inbox Repair tool couldn't.

1. Browse to the folder where the .pst file is stored and you'll find the .bak file (for example, kerimills01@outlook.com.bak) created by the Inbox Repair tool.

2. Make a copy of the .bak file and rename it with a bak.pst extension. For example, kerimills01@outlook.com.bak.pst.

3. Import the bak.pst file into Outlook, and use the Import and Export Wizard to import any additional recovered items into the newly created .pst file.

   Note: Learn how to import a .pst file by reading Import email, contacts, and calendar from an Outlook .pst file.

Locating the Outlook Data Files

You can check the location of your Outlook Data Files in Outlook.

1. Select File > Account Settings > Account Settings.

2. Select the Data Files tab.

3. All Outlook Data Files (.pst) and Offline Data Files (.ost) are listed along with the name of the account the files are associated with.

Hi John,

Thank you for posting your query on Microsoft Office Community.

Before we proceed, I need more information to help you better.

You have mentioned in the query that it is an Exchange Account, and you also stated that it’s an Outlook.com account, kindly let us know that how’s the account set up?

What is the type of account? Is it a POP, IMAP, Exchange ActiveSync or Exchange account?

From the issue description it looks like there are duplicate accounts created in Outlook 2016, due to that you have issue with send and receive issue.

Let’s delete the duplicate account by following suggestions from the below article and check if it helps.

Try the suggestions and let us know the result at your earliest convenience.

Thank you.

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Repair Ost File Outlook 2016 Windows 10

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I only have one account set up with Outlook 2016, and it is an Exchange ActiveSync account for my Outlook email address. There are no duplicates.

I tried to delete the account and add it again. I get this error:

'Before deleting the e-mail account containing your person mail, contacts, and calendar data, you must create a new location for your data.' I did not complete this step.

By the way, since I have gotten the OST error and rebooted, the email account shows up in Outlook (which will now open without error), but there are no emails, no contacts, and the calendar is empty.

Also in my folder AppData/Local/Microsoft/Outlook I have the following files:

*** Email address is removed for privacy *** 8.17.2015

*** Email address is removed for privacy ***(2).ost 8.17.2015

*** Email address is removed for privacy ***(3).ost 10.19.2015

Using Outlook online (browser) all my email and contacts and calendar show up.

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UPDATE:

Since I could not delete OST file using the above linked steps, I decided to try and simply delete every existing OST file by going directly to the folder and deleting them.

That worked. Outlook when opened regenerated the OST file. It took a while, but finally all email and folders as well as contacts and calendar data are now appearing again. This includes emails I sent today using the browser version of Outlook.

NOTE: The application regenerated the file *******Email ID removed for PII******* ost and not the file *******Email ID removed for PII******* (without the 3). Can you confirm that will not cause problems in the future?

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What is the type of account? Is it a POP, IMAP, Exchange ActiveSync or Exchange account?

I got an IMAP account, and this additional problem: Before it happened, I had some subfolders that outlook stated only was saved on the computer. These are now gone. I assume that they are in the original ost-file on the computer, which has a bigger file-size than the new ***(2).ost file. But how can I open the original file to copy the emails over to the new ost-file ?

I have tried opening the ost-file in outlook by going File > Account Settings > Account Settings > Data Files > Add, but it only allows to open pst-files that way.

What to do ?

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Here is what I found when I encountered this. I tried a lot of the same steps, but had run into the same thing where it started a whole new file every time it hung up. Then I got curious and tried the following when encountered on the same 'outlook.com' account.
1) I closed all processess for Outlook.exe through the task manager. Half the time, even though it looked like Outlook had just closed itself, it still had the outlook.exe process running in the background.
2) Ran a repair on the OST using the scanpst.exe tool found in the 'C:Program FilesMicrosoft OfficerootOffice16' folder on the OST.
3) KEY TRICK -> Deleted the affiliated @outlook.com.ost.tmp found in the Data File folder. For mine, it was:
'C:Users{user name}AppDataLocalMicrosoftOutlook'
Once the TMP file was gone, Outlook 2016 stopped having an issue. So, apparently it was both the '.ost.tmp' and the '.ost' that became corrupted. By deleting the tmp and repairing the ost, everything went back to normal without it trying to create a new ost file to work with.

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Outlook 2016 Repair Tool

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