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Detailed Information about "Microsoft Outlook Has Encountered a Problem and Needs to Close" Error
   

Symptom:

When accessing an offline folder (.ost) file with Microsoft Outlook, you see the following error message:

Microsoft Outlook has encountered a problem and needs to close. We are sorry for the inconvenience.

 

Precise Explanation:

Whenever Microsoft Outlook encounters an unexpected error or exception, it will report this error and quit. There are various reasons that will cause this error, including the OST file corruption, bugs in Outlook program, insufficient system resources, defective messages, etc.

 

Solution:

If it is the data corruption in OST file that cause this error, then you can use our product DataNumen Exchange Recovery to solve the problem and prevent data loss, as follows:

  1. Close Microsoft Outlook and any other application that may access the OST file.

  2. Find the OST file that causes the error. You can use the Search function in Windows to search for the OST file. Or find the OST file under the system predefined locations.

  3. Recover the offline data from the OST file. The Exchange OST file contains offline data, including the mail messages and all other items, in your Exchange mailbox, which are very important to you. To recover and rescue these data, you must use DataNumen Exchange Recovery to scan the OST file, recover the data in it, and save them into an error-free Outlook PST file so that you can access all the messages and items with Outlook easily and efficiently.

  4. Backup the original OST file. For the sake of safety, you'd better backup it.

  5. Rename or delete the original OST file.

  6. Fix the error. Make sure the Exchange email account settings in Outlook are correct, and Outlook can connect to your Exchange server successfully. Then restart Outlook and send/receive your emails on the corresponding Exchange mailbox, which will let Outlook create a new offline folder file automatically and synchronize its data with the Exchange mailbox. After synchronization, you should not encounter the aforementioned error any more.

    If this method doesn't work, then your current mail profile is incorrect, and you must delete it and create a new one, as follows:

    6.1 Close Microsoft Outlook.
    6.2 Click Start, and then click Control Panel.
    6.3 Click Switch to Classic View if you are using Windows XP or higher versions.
    6.4 Double-click Mail.
    6.5 In the Mail Setup dialog box, click Show Profiles.
    6.6 Select one of the incorrect profile in the list and click Remove to remove it.
    6.7 Repeat 6.6 until all incorrect profiles have been removed.
    6.8 Click Add to create a new profile and add email accounts according to their settings on the Exchange server.
    6.9 Start Outlook and re-synchronize your Exchange mailbox, you will never encounter the aforementioned error any more.

  7. Import the data recovered in step 3. After your OST file problem is solved, keep the new OST file for the Exchange mailbox open, and then open the PST file generated in step 3 with Outlook. As it contains all the recovered data in your original OST file, you can copy required items to your new OST file as needed.

References: