
Office 365 was installed but stopped working Mac: See Update macOS on Mac Windows: Windows Update: FAQ Temporarily disable antivirus or firewall programs.After activation, the region can be changed back Change to the United States if the region is set to something else, then retry activation. Mac: See Apple Menu -> System Preferences -> Language & Region. Check system date and time and correct if needed.Installed but cannot activate: quick fixes

How many installations have you used? See to check how many activations are left, or to deactivate installations no longer needed.Is another version of Office already installed on this computer? If so, uninstall other versions and try again.Does the computer or device have other problems such as wifi issues or malware? Resolve the other problems, and try again with Office.Do you see an error message "You can only install Office on a PC or Mac"? In the portal check whether "Office" or "Phone & tablet" is selected at the left of the page.Is the device supported? Office 365 is available for Mac, Windows, iPhone, iPad, and Android phones and tablets.Retirees and graduates do not retain eligibility for Office 365 when they leave the U.Students, faculty and staff who leave the U will lose Office eligibility within a few days after they leave.If you are staff or faculty, do you have an on-going position at the U? If your appointment changes term-by-term, you may lose access during times when you are not on staff.

It may take a day or two after you register until you are able to install Office.
