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Outlook OST problems.

OST files are what was known as offline folders. These contain replicas of the mailbox on the server so as to allow offline viewing. If the OST file were to be corrupted, usually by a bad shutdown. Don't waste time trying to repair the OST file.

Just recreate another, by unchecking "Cache Mode" and renaming the OST file and enabling "Cache Mode". A new OST file will be created and the contents of the mailbox replicated. Faster than any OST repair tool.

Comments (5)


how do i delete the ost folder or where do i find it on my system please


Well John, the OST file is typically in your user profile, that is in the Documents and Settings folder.

To find out where it is located, in Outlook 2003/2007, click on Tools, Account Settings.

Click on Change and in the Change E-mail Account window, click on More Settings button.

Click on Advanced tab and there is a button called "Offline folder file settings". Click on the button will show where it is kept.

Note you can only delete the offline folder when outlook is not running.

Alex Cabrera:

Thanks a lot


HI Alfred,
You said it right, but what in case if you are doing something important and that is not being synchronized with Exchange server. In such scenario you will lost that work y recreating new ost file. In such cases one can convert ost to pst file by using third party tools. But these tools are paid and lil bit costly also, so it depends upon Does your ost file data worth the cost of the tool or not. If not it is not a good idea of buying such tools, just recreate the new ost file.

OST to PST Freeware software is a OST to PST Conversion tool in recover and read deleted corrupted OST data and convert OST file to PST file easily. http://www.ostrecoverytool.org

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