Microsoft Outlook comes in two varieties: there's the Outlook.com email service and the Outlook inbox software. In the case of the latter product, you may run into a ...

Several Outlook users have reported the error Cannot start Microsoft Outlook window, Invalid XML, which they encounter while trying to start Microsoft Outlook on ...

Microsoft has fixed a known issue affecting Outlook for Microsoft 365 users since June and causing slow starts and freezes as if Offline Outlook Data Files (OST) were syncing right after launch.