How to resolve the Microsoft Outlook can not be started error that occurs when opening Outlook 2010

Original KB number:   2751236

Symptoms

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?

Outlook can't start error message

Resolution

  1. Select Start > Control Panel.

  2. Change View By to Large Icon, then select Mail.

    Open Mail in control panel

  3. Select Data File.

    Open Data Files

  4. Select the data file you're currently using, and then select Open file Location.

    Open File location

  5. Right-click on the data file, and select Properties.

    Open PST file properties

  6. Uncheck the Read-only box and select OK.

    Read-only checkbox

Now you can open your Outlook 2010 without problems.

Reopen Outlook

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