How to use the COUNT function in Excel to count the number of cells that contain numbers, and to count numbers within a list of arguments.

Windows backup and sync settings sync the settings you choose across all your Windows devices that you've signed in to with your Microsoft account.

Learn how to connect to a projector or to another PC in Windows using the keyboard shortcut "Windows logo key + P", the Connect app (for Windows 10), or the Wireless Display app (for Windows 11).

How to change your Outlook signature or add a signature. Whether it’s a new job title (congratulations!) or a phone number change, make sure you keep your email message signature up-to-date.

Δεν είναι δυνατή η είσοδος στο Hotmail ή το Outlook.com; Η Microsoft παρακολουθεί πάντα για ασυνήθιστη δραστηριότητα εισόδου, σε περίπτωση που κάποιος άλλος προσπαθεί να εισέλθει στον λογαριασμό σας.

Learn more about updates for Windows 10 version 1809, including improvement and fixes, any known issues, and how to get the update.

プロダクト キーまたはデジタル ライセンスを使用して Windows をライセンス認証し、ライセンス認証の状態を確認し、Microsoft アカウントをリンクする方法について説明します。

This article describes the formula syntax and usage of the TODAY function in Microsoft Excel.. Description. The TODAY function returns the serial number of the current date. The serial number is the date-time code used by Excel for date and time calculations.

Learn how to change the email address or phone number that’s associated with your Microsoft account.

There are several ways to archive messages in Outlook. The methods that you can use depend on the type of email accounts that you have set up in Outlook.