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Product activation for Windows – online & support telephone numbers
To activate Windows 11 using an internet connection: As Windows 11 will automatically activate if you are connected to the internet, you can confirm your activation status by selecting Start > Settings > System > Activation and looking under Windows.. If online activation fails, first try the activation troubleshooting in Activate Windows.. To activate Windows 11 by phone:
Find your Windows product key - Microsoft Support
A Windows product key is a 25-character code used to activate Windows. It looks like this: PRODUCT KEY: XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. Locate your product key for Windows 10 or Windows 11
Applies To: Microsoft account dashboard
Use the SUM function to sum numbers in a range
You can use a simple formula to sum numbers in a range (a group of cells), but the SUM function is easier to use when you’re working with more than a few numbers. For example =SUM(A2:A6) is less likely to have typing errors than =A2+A3+A4+A5+A6. Here’s a formula that uses two cell ranges: =SUM(A2:A4,C2:C3) sums the numbers in ranges A2:A4 and C2:C3.
Applies To: Excel for Microsoft 365, Excel for the web, Excel 2021, Excel 2019, Excel 2016
How to open Microsoft Store on Windows - Microsoft Support
Learn how to access Microsoft Store on Windows by selecting the icon on the taskbar or using the search box.
Applies To: Microsoft account dashboard
Get started at Microsoft365.com - Microsoft Support
Sign in with your Microsoft account, or work or school account. For the best experience at Microsoft365.com, sign in with the same Microsoft account, or work or school account you use with Office or Microsoft 365.. Microsoft account This is the email address you use to sign in to Microsoft services like Microsoft365.com or even Xbox Live.It’s called your Microsoft account, but it doesn’t ...
Applies To: Office 2021, Office 2021 for Mac, Office 2019, Office 2019 for Mac, Office 2016, Office 2013, Office for business
Change mouse settings - Microsoft Support
To speed up the process of selecting a choice when a dialog box appears, under Snap To, select the Automatically move pointer to the default button in a dialog box check box.(Not all programs support this setting. In some programs, you'll need to move the mouse pointer to the button you want to click.)
What are IMAP and POP? - Microsoft Support
IMAP and POP are two methods to access email. IMAP is the recommended method when you need to check your emails from several different devices, such as a phone, laptop, and tablet.
Applies To: Outlook for Microsoft 365, Outlook for Microsoft 365 for Mac, Outlook 2021, Outlook 2021 for Mac, Outlook 2019, Outlook 2019 for Mac, Outlook 2016, Microsoft 365 admin, Outlook.com, Outlook Web App for Office 365 operated by 21Vianet, New Outlook for Windows, Outlook Mail for Windows 10
View sent email - Microsoft Support
After you send an email message, you might want to find that email and resend it or forward it to someone else. Outlook stores your messages in the Sent Items folder.If you don't see the Sent Items folder, you may need to change your Outlook settings.. You can find your Sent Items folder in your folder list.
Applies To: Outlook for Microsoft 365, Outlook 2021, Outlook 2019, Outlook 2016, Outlook 2013
How do I get Microsoft Teams? - Microsoft Support
Get a free version of Microsoft Teams (for work, school, or friends and family) If you don’t have Microsoft 365 and you don’t use a business or school account, you can get a basic version of Microsoft Teams.
Applies To: Microsoft Teams
Check your device performance and health in Windows Security
The Health report starts off by showing you the last time a Device Health scan was run. The time displayed should be basically the current time, as Windows Security tries to run a Device Health scan when you open the Device performance & health page.. Beyond the time of last scan you'll see the status of the key areas that Device Health monitors: