Sometimes, the Microsoft Outlook fails to open due to a PST file corruption. Repair Outlook data file to fix Outlook won't start error Verify if Outlook is running in Compatibility Modeĥ. Open Outlook in Safe Mode and Disable Add insĤ. 5 Ways to Fix Outlook Won't Start ErrorĢ. Worry not, this article will let you know why is Outlook is not opening and guides you to easily fix “ cannot start Microsoft Outlook error” in simple DIY methods. What will you do to when Microsoft Outlook doesn't open? How will you fix Cannot start Microsoft Outlook error? Unfortunately, Outlook will also make your life at work tough with this error that says “ Cannot start Microsoft Outlook Cannot open the Outlook Window”. The word Outlook has become synonyms to mail applications at workplaces around the globe. Microsoft Outlook is an integral part of the workplace making our lives at work easier.
