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Article ID: 2751236 - Last Review: September 12, 2013 - Revision: 4.0

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This is a Step-By-Step article
This is a Step-By-Step (http://support.microsoft.com) article

Scenario Description

When I open Outlook 2010, why do I see error messages such as "Microsoft Outlook can not be started, cannot open the Outlook window, the set of folders cannot be opened, cannot access file, you do not have the permission required to access the file XXX" or "Cannot open your default e-mail folders. Cannot access file, You do not have the permission required to access the file XXX"? How can I resolve this problem?


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Outlook cannot start error message



Simple solutions 123

First, click "Start", and then click "Control Panel".

Change "View By" to "Large Icon", then click "Mail".


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Open Mail in control panel



Click "Data File".


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Open Data Files



Next, click the data file your are currently using, and then click "Open file Location".


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Open File location



Right-click on the data file, and click "Property".


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Open PST file properties



Finally, please uncheck the "Read Only" box and click "OK".


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Read only checkbox



Now you should be able to open your Outlook 2010 without problems.


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Reopen Outlook



Please let us know

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Applies to
  • Microsoft Outlook 2010
Keywords: 
kbprb kbtshoot kbexpertisebeginner kbstepbystep kbgraphxlink KB2751236
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