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Outlook 2007 Corrupt ost file

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#1 andresinger


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Posted 23 October 2015 - 12:43 PM

We are running Exchange and Office 2007.  I have a user who receives an error message concerning a corrupt ost file after he reconnects his laptop to the network and tries to open Outlook.  Any idea of root cause?

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#2 hamluis



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Posted 23 October 2015 - 01:09 PM

File damage (aka "corruption") occurs for many reasons and often.  My guess would be that it's impossibly to determine how such happened...but a repair or reinstall of Outlook would be my first choice of action.


Causes of Data Corruption - http://ezinearticles.com/?Causes-of-Data-Corruption&id=817785


Hard Drive Data Corruption - http://cquirke.mvps.org/9x/baddata.htm



Edited by hamluis, 23 October 2015 - 01:12 PM.

#3 niklasschlag


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Posted 29 October 2015 - 06:19 PM

You may apply guide below or helpful resources, but only in case the guide isn't able to help you


https://www.openfiletool.com/ostopen.html  OST Open File Tool




Outlook 2007


1. Locate the .ost file.

i. From the Tools menu, click Account Settings.
ii. From the "Account Settings" window, click the Data Files tab.
iii. Click the data file labeled as "Default."
iv. Click Open Folder....

2. Rename the .ost file by right clicking on the file and selecting Rename.

   - We suggest rename the file to ost.old.

3. Press Enter on your keyboard.
4. Open Outlook. Outlook should start to configure a new data file.

   - This process can take anywhere from 10-60 minutes depending on your mailbox size.

Watch out - While the new data file is being configured make sure you don't open SFO or close Outlook.

When your mailbox has been rebuilt you'll see the message, "All folder are up to date" in the lower right hand corner.

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