当在新设备中首次启动 Windows 10 时，设备上已安装的防病毒保护程序即是你的默认安全应用。但是，Windows 安全中心已预安装并可随时使用。 如果你想要使用 Windows 安全中心，可卸载其他所有防病毒程序，Windows 安全中心即自动打开。

Safe mode starts Windows in a basic state, using a limited set of files and drivers. If a problem doesn't happen in safe mode, this means that default settings and basic device drivers aren't causing the issue.

Step 2: Back up your folders. Windows Backup is an easy, single stop for all of your backup needs. Your free Microsoft account comes with 5 GB of OneDrive cloud storage (and more storage is available if you need it), and backing up your folders syncs the folders you specify to your OneDrive account, making them instantly accessible on all computers that you use with this Microsoft account.

To pin Quick Assist to your taskbar so you can quickly get back to it, after Quick Assist is open, right-click (or press and hold) the icon on your taskbar > Pin to taskbar. If the old app icon still appears on your device, make sure you select the new app icon.

Use System restore to make restore points when you install a new app, driver, or Windows update, and when you create a restore point manually.

Turn on your Xbox Wireless Controller by pressing the Xbox button .; Press and hold the Pair button on your controller for three seconds (the Xbox button will start flashing rapidly).; On your PC, press the Start button , then choose Settings > Devices > Bluetooth & other devices (on Windows 11: Settings > Bluetooth & devices).; Turn on Bluetooth. ...

Microsoft 鼠标和键盘中心是可帮助你充分利用 Microsoft 键盘和鼠标的应用。 借助鼠标和键盘中心，可个性化设置和自定义你在电脑上的工作方式。 此应用不适用于 Windows S 模式。 下载最新版本的鼠标和键盘中心：

如何获取 Windows Installer 4.5 可再发行组件 在下载此可再发行组件之前，必须确定你运行的是 32 位还是 64 位版本的 Windows。 自动版本检测结果 注意 如果自动检测结果未显示在屏幕上，请查看如何确定计算机运行的是 32 位还是 64 位版本的 Windows 操作系统。 ...

If you need instructions for adding an email account using advanced settings, go to Use advanced setup to add a POP or IMAP email account in Outlook for PC. Outlook won't accept my password. If Outlook won’t accept your password and you know you’re using the right password for your Gmail account, you might have an older version of Outlook that doesn't currently support this faster Gmail ...

Microsoft 365 for business If your business subscription plan includes the desktop version of the Microsoft 365 apps you won't see an option to install it unless someone in your organization assigned a license to you.. Learn how to check this in What Microsoft 365 business product or license do I have? or if you're a Microsoft 365 admin responsible for assigning licenses to people in your ...