Tip: If you're a Microsoft 365 Family or Personal subscriber you get Microsoft Defender, our advanced security software for Windows, Mac, iOS, and Android, as part of your subscription.Learn more at Getting started with Microsoft Defender.

An upgrade moves your PC from a previous version of Windows—such as Windows 7 or Windows 8.1—to Windows 10. An upgrade can take place on your existing device, though Microsoft recommends using Windows 10 on a new PC to take advantage of the latest features and security improvements.

To edit a PDF, open it in Word. This works best with PDFs that are mostly text. PDFs of book chapters or something that looks like a manuscript from a copier won't be formatted well in Word.

Important: Section breaks are different from page breaks.If you already have a page break before the page where you want to change the header or footer, remove a page break and replace it with a section break as shown below.

若要在 Windows 11 中检查激活状态，请选择“开始 ”按钮，然后选择“设置 > 系统 ” ，然后选择“激活 ”。 。 激活状态将在“激活”旁边列出。 在“设置”中检查激活状态. 你将在“激活”页面上看到以下一条激活状态消息：

The new Bing is now available to everybody directly from the Windows taskbar, making more ways to interact with your PC across search, answers, chat, and creation available anytime, right on your desktop.

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 ...

Safe mode starts Windows with a minimal set of drivers and services to help troubleshoot issues. If a problem doesn't reappear when you start your PC in safe mode, you can eliminate the default settings and basic device drivers and services as possible causes.

Tip: To change where your application automatically saves your templates, click File > Options > Save and type the folder and path you want to use in the Default personal templates location box. Any new templates you save will be stored in that folder, and when you click File > New > Personal, you'll see the templates in that folder.

To specify the next cell color, font color, or icon to sort by, click Add Level, and then repeat steps three through five.. Make sure that you select the same column in the Then by box and that you make the same selection under Order.. Keep repeating for each additional cell color, font color, or icon that you want included in the sort.