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Personalize your lock screen - Microsoft Support
Learn how to personalize a Windows lock screen with a background photo, slideshow, or app notifications.
Windows 11 使 - Microsoft
Windows 11 でのタスク バー機能の使い方について説明します。 タスク バー設定で、タスク バーの非表示、アプリのピン留め、場所の変更などを行います。
How to use your Surface Pen - Microsoft Support
Learn to set up and use your Surface Pen to work, play, and create.
Change the size of your desktop icons in Windows
Change the size of your desktop icons. To resize desktop icons, right-click (or press and hold) the desktop, point to View, then select Large icons, Medium icons, or Small icons.
Troubleshooting black or blank screens in Windows
If your computer is showing a black or blank screen in Windows, these troubleshooting tips could help get your system back up and running.
SUMIF function - Microsoft Support
How to use the SUMIF function in Excel to add the values in a range that meet criteria that you specify.
适用于: Microsoft 365 专属 Excel, Microsoft 365 Mac 版专属 Excel, Excel 网页版, Excel 2021, Excel 2021 for Mac, Excel 2019, Excel 2019 for Mac, Excel 2016
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Multiple desktops in Windows - Microsoft Support
Use multiple desktops in Windows to organize projects, or quickly switch between desktops before a meeting.
Free up drive space in Windows - Microsoft Support
Find out how to free up space on your device by deleting unnecessary files, uninstalling apps, and moving files to other drives.
Add an app to run automatically at startup in Windows 10
Learn how to add an app to run automatically at startup. Select the Start button and scroll to find the app you want to run at startup.