(Selection also say Microsoft Office 365) Find Microsoft Office 2010/2013/2016/2019 in the list and highlight it.Open up the Control Panel on your PC (and show All Control Panel items, if necessary) and click on Programs, then Programs and Features.Click Here for our full article on this issue. To resolve this issue, please use the steps below to run an Online Repair of Office. This issue appears to be caused by a bad Outlook/Windows Update. When you get it fixed, read our post Why Windows XP was better than Windows 10 for entertainment.ġ: Outlook 'No Default Mail Client' Error: As of 9/16/20 we have reports of CompanionLink giving a 'No Default Mail Client' error on sync. See our friends at Bleeping Computer for a full rundown. 1: Outlook bug prevents viewing or creating email - A Microsoft introduced a new bug today where some people are Unable to Edit or Create Email Update: Microsoft says they will roll this fix in the next 8 hours.