Learn how to use the Settings app to view and change display settings in Windows.

但如果需要测试多个条件，例如我们假设所有条件都需要为 True 或 False ( AND )，或只有一个条件需要为 True 或 False ( OR )，或者如果想要检查某个条件是否不 ( NOT) 符合你的条件，这时该怎么做呢？ 这三个函数均可以单独使用，但它们更常见于与 IF 函数成对使用。

The Media Feature Pack for Windows 10/11 N is available for download as an Optional Feature. Here’s how to install the Media Feature Pack:

Learn how to connect your Windows PC to external monitors and adjust the display settings.

在浏览 Web 时，Microsoft Edge 可以轻松保存密码。 在桌面或移动设备上的 Edge 浏览器中输入新密码时，Microsoft Edge 会询问你是否要记住用户名和密码。 下次访问该网站时，浏览器将完成帐户信息的填写。 如果使用 Microsoft 帐户登录到 Edge，则所有已登录设备都可以使用这些密码。

لتسجيل الدخول إلى Hotmail، ستحتاج إلى اسم المستخدم وكلمة المرور لحساب Microsoft. تسجيل الدخول. أثناء تسجيل الدخول، حدد نعم في المطالبة "البقاء قيد تسجيل الدخول؟". إذا كنت تريد الانتقال مباشرة إلى ...

Here's how to do this in Windows 11: Select Start > Settings > System > Sound. In Input, select a microphone to see its properties. In Input volume, make sure the blue bar adjusts as you speak into the microphone. If it doesn't, go to Test your microphone and Start test. This will help you troubleshoot any issues with your microphone.

Learn how to run a disk cleanup in Windows including deleting temporary and system files to free up disk space.

Request an Xbox controller replacement. If your controller isn’t working and needs replacing, enter the controller’s serial number at the bottom of this page. You can find the serial number inside the battery compartment, below the barcode. Things to keep in mind: Controller serial numbers are 14 characters long and don’t include dashes.

Learn how to open, navigate, and troubleshoot File Explorer in Windows, with answers to common questions and support assistance.