You are here: KB Home O365 Sign in to O365 < Back Sign in to O365 Use0365 in browser 1 Open link Open this link in a browser tab:https://www.office.com/signin 2 Login Sign in using NetID and password. Use O365 on desktop Windows 10 users | OneDrive will either request for login credentials or is already signed in to sync files.In File Explorer, select OneDrive.