Do note that this update can’t be removed from ‘Add or Remove Programs’ interface as it does not show up there. But we can manually uninstall this KB949810 update to get rid of these notifications. OGA crack was a rumor and we are yet to see any KB949810 crack working. Once installed KB949810 verifies your product key number and if it finds the product key number illegal or pirated, it will start showing a “This copy of Microsoft Office is not genuine” notification in your system tray area along with at splash screen whenever you try using Office programs. All Microsoft Office versions such as MS Office 2003, MS Office 2007, MS Office 2010 or MS Office XP are getting updated with Office Genuine Advantage Notifications (OGA KB949810) automatically.