Microsoft Windows Emergency Update

Learn how to install, reinstall, or activate microsoft 365 or office 2024 on a pc or mac. Get help for the account you use with microsoft. Find how to set up microsoft account, protect it, and use it to manage your services and subscriptions.

Find out how to get support for microsoft apps and services. Search for help on the taskbar, use the tips app, select the get help link in the settings app, or go to support.microsoft.com/windows. Dec 17, 2025welcome to the special edition of what's new in microsoft 365 copilot for both november and december 2025!

Every edition, we highlight new features and enhancements to keep microsoft. If the username lookup wasn't successful, try looking for your microsoft account username within other products or services that you know are associated with that account.