Activate by using the telephone You can telephone an Activation Center using the numbers for your specific country/region listed in this article to activate your product with the help of a customer service representative.. Telephone activation might take longer than activation through the Internet. You should be at your computer when you call, and you should have your software Product Key ...

To activate using your digital license, you'll need to upgrade to Windows 11 Pro: Save your work and close any open apps.

Microsoft Rewards offers and redemption catalogs vary across regions. The following is a list of countries/regions in which Microsoft Rewards is currently available:

Important: Workbook links are considered potentially unsafe and must be enabled when you open a formula workbook.When you open a formula workbook, click Enable Content in the Message Bar to allow the workbook links to function. If you don't, Excel keeps the most recent values and disables refreshing the links with values from the data workbook.

Select the Windows Security app from the search results, go to Virus & threat protection, and under Virus & threat protection settings select Manage settings.

Find the serial number in Surface UEFI. You can find the serial number in the PC information section of Surface UEFI. To learn more, view How to use Surface UEFI. Find the serial number on the Device Service & Repair page

Turn on Find my device. When you set up a new device, you can decide whether to turn on or turn off the Find my device setting. If you turned it off during setup and now want to turn it on, make sure your Windows device is connected to the internet, has enough battery power so it can send its location, and that you're signed in to the device using your Microsoft account.

Need the full set of Excel features? Open your file in the Excel desktop app one of two ways, depending on what you see in your workbook: Select Open in Desktop App at the top of your workbook.If you don't see it, there should be a search bar along the top of your workbook.

Look in the Surface app. The easiest way to find which Surface model you have is to use the Surface app. It shows the model name of your Surface device and each Surface accessory.

Multiply numbers in different cells by using a formula. You can use the PRODUCT function to multiply numbers, cells, and ranges.. You can use any combination of up to 255 numbers or cell references in the PRODUCT function. For example, the formula =PRODUCT(A2,A4:A15,12,E3:E5,150,G4,H4:J6) multiplies two single cells (A2 and G4), two numbers (12 and 150), and three ranges (A4:A15, E3:E5, and H4 ...