How do I start Microsoft Office 2013 when it refuses to open?

Jozehpamir June 20, 2014
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I decided to go ahead this morning and set up Outlook 2013 this morning.

When I clicked on it, it came up with this message:

“Cannot start Microsoft Outlook. Cannot open the Outlook window. The set of folders cannot be opened. The file C:\Users\XXX\AppData\local\Microsoft\Outlook\XXX_m sn.ost cannot be opened.”

I checked if the file was there, and Outlook ’07 works just fine. All of the other O365 programs work great, no problems.

How do I open OST file?


  1. Anna B
    July 3, 2014 at 11:08 am
  2. Hovsep A
    June 20, 2014 at 8:18 pm

    How to create profile and set up an e-mail account in Outlook

    1) Windows key + R
    2) type: Outlook.exe /resetnavpane

    •Go to control panel
    •Mail icon, Show profile.
    •Highlight the new profile and click on always use this profile
    •Click ok.