In Outlook, it's no longer possible to sign out of your account or be prompted for a password to sign in. Therefore, if you share your computer with others, you might want to prevent them from accessing your email account while they use your computer. To protect your privacy, have others sign into your computer with their own account. This will give them their own personalized experience and prevent them from accessing your Outlook email. To create a user account for each person who will use your computer, see "Create a user account" for Windows 7 , Windows 8/8.1 , or Windows 10 . Tip: For infrequent users, consider creating a local "guest" user account for all your guest users to share. Log off from Windows If you're logged into your computer and want to let someone else use it, or if you're leaving your computer unattended for a while, sign out of Windows. ...