When you get a new device and start up Windows 10 for the first time, the antivirus protection that comes installed with the device is your default security app.

使用产品密钥激活 Windows. 产品密钥是由 25 个字符组成的代码，如下所示：. 产品密钥：XXXXX-XXXXX-XXXXX-XXXXX-XXXXX. 在安装期间，系统会提示你输入产品密钥。. 或者，安装后，若要输入产品密钥，请选择“ 开始 ”按钮，然后选择 “设置 > 系统 > 激活 > 更新产品密钥 ...

Add flair to your email with emojis. Windows 10 and 11 contain a large set of emojis. To insert one: Put your cursor where you want the emoji. Hold Windows key + . (period) to open the Windows Emoji picker. Select a symbol to insert it in your email message. When you're done, select × to close the emoji picker.

To add another account to OneDrive on your computer. If you already have a personal OneDrive account set up, you can only add work or school accounts. Open OneDrive settings (select the OneDrive cloud icon in your notification area, and then select the OneDrive Help and Settings icon then Settings .) Go to the Account tab. Select Add an account.

About Windows 11 in S mode. Windows 11 in S mode is a version of Windows 11 that's streamlined for security and performance, while providing a familiar Windows experience. To increase security, it allows only apps from Microsoft Store, and requires Microsoft Edge for safe browsing.

In the browser, go to Settings and more > About Microsoft Edge (edge://settings/help). Depending on where you purchased your device, you may see one or both of following toggles: Download and install updates automatically. Download updates over metered connections. Turn on any available toggles to always allow automatic downloads of updates.

Sign in to the Advanced security options page of your Microsoft Account. Sign in. Select Add a new way to sign in or verify then choose how you would like to receive security codes. Note: VOIP numbers cannot be added as a way to sign in or get verification codes. We'll send a security code to the new number or email to confirm.

Select Start , select the arrow next to All apps, right-click the app, then select More > Pin to taskbar. If the app is already open on the desktop, press and hold (or right click) the app's taskbar icon, and then select Pin to taskbar. Note: To remove a pinned app from the taskbar, right-click the app icon, then select Unpin from taskbar.

Select Start > Settings > System > Activation . Select Change product key, and then enter the 25-character product key. Open Activation settings. If you've made a major change to your device's hardware, such as a motherboard replacement, run the Windows Activation troubleshooter located on the activation settings page.

Why accounts are locked and disabled. Microsoft accounts are usually locked if the account holder has violated our Microsoft Services Agreement.Here are some common reasons why accounts are locked, though not all account locks occur for these reasons: