There are two ways to open Registry Editor in Windows 10: In the search box on the taskbar, type regedit, then select Registry Editor (Desktop app) from the results.

Learn how to sign into your PC with Windows Hello using a PIN, facial recognition, or fingerprint.

How to use the SUMIFS function in Excel, one of Excel’s math and trig functions, to add arguments that meet multiple criteria.

Receive photos, videos, or other kinds of files that you or a friend shares from another device, such as a phone, laptop, or tablet. On your PC, select Start > Settings > Devices > Bluetooth & other devices. Learn how to pair.

Email messages that you receive can be saved as a file on your computer, or a message that you are composing can be saved as a draft and finished later.

Here are the most likely causes for an unrecognized charge: A Microsoft subscription has recurring billing enabled.

Use the Settings app in Windows 10 to set a default printer and manage printer settings.

See how to arrange all your open windows using the mouse, keyboard, or the Snap Assist feature in Windows.

Use a ready signature template from a gallery to create your email signature in Outlook.

Learn how to type a letter online using Word for the web. Choose a letter template for online letter writing. Edit, send or print your letter online.