See a list of options available for starting Windows in diagnostic modes such as safe mode.

Want to add a padlock to your email messages? You can use S/MIME in Outlook on the web to increase the security of messages. A digitally encrypted message can only be opened by recipients who have the correct key.

Training: How to save and upload files and folders to OneDrive in your browser or on your desktop.

Summary. This security update makes improvements to Secure Boot DBX for the supported Windows versions listed in the "Applies to" section. Key changes include the following:

Remove a manual page break. Go to Home and select Show/Hide .. This displays page breaks while you’re working on your document.

Learn about the features and see diagrams of Surface Pro (5th Gen).

Learn how to change Internet Explorer settings, or reset browser settings when there's a problem.

Explore subscription benefits, browse training courses, learn how to secure your device, and more.

Learn how to add members to your family group including child and adult accounts.

Add your Outlook.com, Microsoft 365, or Exchange-based email account to your iPhone, iPad, or iPod Touch using Outlook for iOS.