Manually record the title of every selected add-in listed under Available Add-ins. The attempt to log on to Microsoft Exchange has Failed. In the upper-left corner of Outlook, choose File > Options > Add-ins.Īt the bottom of the View and manage Office Add-ins, make sure the Manage box shows COM Add-ins, and then choose Go.Īs a precaution, when the COM Add-ins listing of your current add-ins opens, do one of the following: Start Outlook in safe mode: Start > Run > Type Outlook /safe > in the choose profile dialog, accept the default setting of Outlook and choose OK (if prompted, enter your password). It only has the following message pop up: Cannot start Microsoft Outlook. When opening Outlook, a blank white box appears for a few seconds, then a few. I did connect to Microsoft Exchange once. You must connect to Microsoft Exchange at least once before you can use your Outlook data file (.ost). The only way I can fix this is by removing the complete outlook profile and setting it up again. If Outlook is NOT able to start in safe mode, then try the next proposed solution below, entitled Create a new Outlook profile. The file C:\Users.ost cannot be accessed. The attempt to log onto Microsoft Exchange has failed'. You'll need to disable all of your add-ins before restarting Outlook, as described in the following procedures: For whatever reason, I was presented with the message 'Cannot start Microsoft Outlook. These have been working correctly for a couple of months, since putting them on my brand new desktop.
#CANNOT START MICROSOFT OUTLOOK CANNOT OPEN WINDOW PRO#
If Outlook is able to start in safe mode, then the problem is likely with one of your add-ins. I am using Windows 7 Pro and Outlook 2010 version. The Outlook icon on your taskbar includes an exclamation symbol to alert you the program isn't operating normally. How do you know you're working in safe mode? You'll see a label similar to the one below at the top of the screen.
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