How do I reset my Outlook 2010 OST file?

Steps to rebuild OST file in Microsoft Outlook

  1. Open Outlook.
  2. Go to File > Info.
  3. Click on Account Settings and hit on Microsoft Exchange.
  4. In the settings window, go to more settings and then Advanced tab.
  5. Select Offline folder file settings.
  6. Browse a location to save Outlook.ost file and click Ok.
  7. Click Finish.

What is Ost error?

Summary: When errors are detected in the OST file, you may find problem in opening the Outlook. OST is created on the local machine when you configure or sign in using an Exchange, Office 365, or IMAP account in MS Outlook. It lets users access, read, and draft messages even when the system is offline.

How do I open an OST file in Outlook 2010?

How to Open OST File in Outlook?

  1. In Control Panel, click or double-click Mail.
  2. On the E-mail tab, select the Exchange account, and then click Change.
  3. Clear the Use Cached Exchange Mode check box.
  4. Click More Settings.
  5. On the Advanced tab, click Offline Folder File Settings.

Why is OST file corrupted?

Hard disk crash is very common that can happen due to the two most common reasons: logical failure or physical failure. Whenever a hard disk crashes down, all the stored data become inaccessible or corrupted. Since the OST files are stored on a local system, they may become corrupted due to storage media failure.

What happens if I delete Outlook OST file?

Once the OST file is deleted, you may feel the need to recreate the file to let the Outlook work efficiently. This can be done by creating a new OST file with a different pathname and synchronize it with Exchange. Configure your Outlook and initiate working in offline mode with the newly created and synchronized OST.

Can you import an OST file into Outlook 2010?

Manual Method for Importing OST File into Outlook 2010! Drag-and-drop the \”Outlook. ost\” file to your desktop. Copy the alternate OST file into the \”Outlook\” directory. After opening of Outlook, it will now automatically import the new OST data and treat it as the primary OST file.

What does Ost stand for Outlook?

Offline Outlook Data File
Offline Outlook Data File (. ost) Most other account types, such as IMAP accounts, Microsoft 365 accounts, Exchange accounts, and Outlook.com accounts use an Offline Outlook Data File (. ost) file to store a synchronized copy of your mailbox information on your local computer.

What happens if you delete the OST file?

Many users have a query that Is it safe to delete Outlook OST file? So, there will be no data loss when the users remove an OST file because it can be again downloaded from Exchange Server. But it is recommended to take a backup of Offline Storage File into PST file format before going to the deletion process.


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