Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

On the PC you’re projecting from, select Windows logo key + K and select the PC you’d like to connect to. Or you can search for Cast in the Windows Search bar, then select Connect to a wireless display. On the Display settings page, under Multiple displays, select Connect to a wireless display, then select Connect.

Refunds for digital games include Microsoft Store digital game offers, Xbox apps (excluding movies and TV apps), digital gaming bundle offers, digital game durable content, and some digital game consumable content, whether made available through the Xbox console, on your PC, or on your mobile device.

要创建安装介质，你需要以下工具： 具有可靠的 Internet 连接的电脑。 下载时间会有所不同，具体取决于你的 Internet 连接。 U 盘、外部硬盘或 DVD。 具有至少 8 GB 空间的空白 U 盘或外部硬盘，或空白 DVD（以及 DVD 刻录机）。 我们建议使用空白 U 盘或空白 DVD，因为其中的任何内容都将被删除。 从 ISO 文件刻录 DVD 时，如果提示光盘映像文件太大，则需要使用双层 (DL) DVD 介质。 产品密钥。 25 个字符的产品密钥（如有数字许可证，则不需要）。 有关查找产品密钥的帮助，请参阅 查找你的 Windows 产品密钥 。 创建安装介质后，可以重置或重新安装 Windows。 若要了解详细信息，请转到 Windows 中的恢复选项 。

Go to https://account.microsoft.com/devices/recoverykey to find your recovery key. Tip: You can sign into your Microsoft account on any device with internet access, such as a smartphone. It should look something like this:

PC Health Check app brings you up to date info on your Windows device health, helping you take action to improve your device performance and troubleshoot performance problems. It is periodically updated based on customer feedback to help you make the most of your Windows PC. How to open PC Health Check.

In Remote Desktop Connection, type the name of the PC you want to connect to (from Step 1), and then select Connect. On your Windows, Android, or iOS device: Open the Remote Desktop app (available for free from Microsoft Store, Google Play, and the Mac App Store), and add the name of the PC that you want to connect to (from Step 1).

Press Windows logo key + S or select Search, type pc health check, and select PC Health Check from the list of results. Select Check now. It can take up to 24 hours for Windows Update to refresh your eligibility info.

Using product keys with Office. Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead.

Learn how to download and install apps you need from your Microsoft 365 business subscription.