Hotmail is now Outlook.com To sign in to Hotmail, you'll need your Microsoft account username and password. Sign in at outlook.live.com

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.

Learn how you can free up drive space in Windows. Keep your PC running smoothly and up to date by increasing the disk space.

Learn what you can do if you're not receiving account aign-in verification codes.

Zipped (compressed) files take up less storage space and can be transferred to other computers more quickly than uncompressed files. In Windows, you work with zipped files and folders in the same way that you work with uncompressed files and folders. Combine several files into a single zipped folder to more easily share a group of files. To zip (compress) Locate the file or folder that you ...

Uninstall from the Start menu Select Start > All apps and search for the app in the list shown. Press and hold (or right-click) on the app, then select Uninstall. Uninstall in Settings Select Start > Settings > Apps > Installed apps . Find the app you want to remove, select More > Uninstall.

Check the Xbox services, games, and apps for any service outages.

Send large files by using file sharing, cloud services, or other solutions for working around file size limits in Outlook.

Your message couldn't be delivered because you weren't recognized as a valid sender. The most common reason for this is that your email address is suspected of sending spam and it's no longer allowed to send email. Contact your email admin for assistance. Remote Server returned 550 5.1.8 Access denied, bad outbound sender.