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Cannot start Microsoft Outlook. Unable to open the Outlook window. The set folders could not be opened. The server is not available. Contact your administrator if this condition persists - SOLVED

Cannot start Microsoft Outlook. Unable to open the Outlook window. The set folders could not be opened. The server is not available. Contact your administrator if this condition persists 


Hi,
I am using Windows 7 Enterprise and outlook 2010 edition
Suddenly I got the "Cannot start Microsoft Outlook. Unable to open the Outlook window. The set folders could not be opened. The server is not available. Contact your administrator if this condition persists".
It worked only after creating another outlook profile. Is there anyway to solve the issue without creating new outlook profile.

Solution 1:

Actually, this issue occurs as the current navigation pane in Outlook is not working properly. We can try to use the command "Outlook.exe /resetnavpane" to clear and regenerate the navigation pane for the current Outlook profile.

To run this command, click the Start pearl, in the Search box, type command. Right click on Command Prompt and press Enter. Run the following command in the Command Prompt:
"C:\Program Files\Microsoft Office\Office 14\Outlook.exe" /resetnavpane
Note: I assumed that your Office program is installed in C:\Program Files. If it is installed in other path, you can change the path.

If the problem persists after this, the best method is to create a new Outlook profile.

Please take your time to try the suggestions and let me know the results at your earliest convenience. If anything is unclear or if there is anything I can do for you, please feel free to let me know.

Solution 2:
I had the same issue running in cached mode for some reason Outlook did not know where to creat the offline (ost) files I just created a "Outlook Data" folder in my docs. Control panel ->Mail 32 --> Email Accounts --> View or change existing email accounts --> Click on the Change --> click on More settings --> ADvanced TAB --> Offline folder file settings browse to a existing folder or create one and Outlook should setup your offline data here. Or just turn off cached mode if you dont need it. Either way you should no longer get the error.
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