The COUNT function counts the number of cells that contain numbers, and counts numbers within the list of arguments. Use the COUNT function to get the number of entries in a number field that is in a range or array of numbers. For example, you can enter the following formula to count the numbers in the range A1:A20: =COUNT(A1:A20).In this example, if five of the cells in the range contain ...

To adjust power and sleep settings in Windows 10, go to Start , and select Settings > System > Power & sleep.. Under Screen, select how long you want your device to wait before turning the screen off when you're not using your device.

Troubleshoot problems with Bluetooth accessories. If you can turn on Bluetooth but having problems pairing or using a Bluetooth accessory, try the following steps to try to fix common problems with Bluetooth accessories.

Outlook won't accept my password. If you've forgotten the password for a Microsoft account, user our sign-in helper to get back into your account.. If you know you’re using the correct password for your email account but Outlook won’t accept it, you might have an email account that requires additional security.

Microsoft support is here to help you with Microsoft products. Find how-to articles, videos, and training for Microsoft Copilot, Microsoft 365, Windows, Surface, and more.

Learn how to remove malware from your PC. Use Microsoft Defender Antivirus in Windows 10 or Windows 11 to scan your PC for malware, viruses, or other threats.

You can insert the current date and time in an Excel cell as static values or as dynamic values. A static value is one that doesn’t change when the worksheet is recalculated or opened. A dynamic value is one that is updated each time formulas are recalculated.

If your printer isn't responding, you may need to remove it and reinstall it so Windows can download and install the proper drivers. Make sure your printer is on and connected to your PC.

On another Windows PC or other device, connect to Wi-Fi as you normally would, and enter your Wi-Fi password when prompted. For more info about connecting to Wi-Fi, see Connect to a Wi-Fi network in Windows.

If you can't sign into your Microsoft account, most issues can be identified by our sign-in helper tool. The tool will ask you to enter the email address or mobile phone number you're trying to sign in with and check the details you provide.