=RAND()*(b-a)+a. If you want to use RAND to generate a random number but don't want the numbers to change every time the cell is calculated, you can enter =RAND() in the formula bar, and then press F9 to change the formula to a random number. The formula will calculate and leave you with just a value.

查找有关 Windows 操作系统的帮助和操作方法文章。 获取对 Windows 的支持，并了解安装、更新、隐私、安全等方面的信息。

To use your camera with apps on Windows 10, you'll need to turn on some permissions in Camera settings. Then, you'll need to check your app permissions if you want to use your camera with apps.

Press the Start button , and then enter store into the search bar.; Choose Microsoft Store from the results to open the app.; Select your account in the top-right corner of the screen, and then select Redeem code or gift cards.; Enter the 25-character code, select Next, and then follow the prompts.

OneDrive for Business provides one place to store, share and sync your work or school files.

We’re making some changes to Windows and Microsoft 365 that will impact Cortana users. Cortana voice assistance in Windows as a standalone app was retired in the spring of 2023.

The Snap feature in Windows has some predetermined layouts that you can choose from to snap all your open windows. To open Snap layouts: With your keyboard: In the window you would like to snap, press Windows Logo Key + Z to launch the layout box.

Tablet mode makes Windows 10 more touch-friendly when using your device as a tablet. Select action center on the taskbar (next to the date and time), and then select Tablet mode to turn it on or off.. Use your PC like a tablet

Try these steps if you’re having trouble buying apps, games, or downloads from the Microsoft Store.

No. Microsoft 365 is a subscription service that makes sure you always have the most up-to-date modern productivity tools. Microsoft 365 already has all the features that will be coming to Office 2021 and Office LTSC, including such features as real-time collaboration as well as other advanced productivity and security features not found in Office 2021 or Office LTSC.