Avoid and report Microsoft technical support scams
If you receive a phone call claiming to be from Microsoft, or see a pop-up window on your PC with a fake warning message and a phone number to call and get your “issue” fixed, it’s better to be safe and not click any links or provide any personal information.
Find your Windows product key - Microsoft Support
Locate your product key for Windows 10 or Windows 11. Depending on how you got your copy of Windows 10 or Windows 11, you'll need either a 25-character product key or a digital license to activate it.
Applies To:
Microsoft account dashboard
Contact Us - Microsoft Support
Get help and support, whether you're shopping now or need help with a past purchase. Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.
Global Customer Service phone numbers - Microsoft Support
To find a customer service phone number in your country, please click a region and find your country. Note: Support cases for Surface devices may only be initiated online.
NAT type on Windows displays "Teredo is unable to qualify"
NAT type on Windows displays "Teredo is unable to qualify". If you can’t connect to an Xbox multiplayer game on Windows 10, go to Settings > Gaming > Xbox Networking. Look for NAT Type. If the status says Teredo is unable to qualify, it means your PC is unable to obtain a Teredo IP address.
使用 Xbox 主机或 Windows 设备时发生 0x80070490 或 80070490 错误
解决方案 1：重启你的主机或电脑. 按主机正面的 Xbox 按钮 大约 10 秒钟，直到主机完全关闭。. 拔下主机电源线的插头。. 等待 10 秒。. 重新插入主机电源线的插头。. 按主机上的 Xbox 按钮 重新打开主机。. 要断电重启 Windows 设备，请按住电源按钮 10 秒钟直到电脑 ...
Introducing Microsoft Phone Link and Link to Windows
Our latest evolution brings a new name to unify the experience for all our users. With that, we're introducing Microsoft Phone Link as the PC app experience, and Link to Windows as our mobile app for Android devices.
购买和付款 | Skype 支持
在日本获取 Skype 号码的要求是什么？. 根据日本法规，自 2023 年 6 月 12 日起，当你请求 Skype 号码 在日本，需要通过验证流程才能购买号码。. 完成验证流后，你将获得所选的 Skype 号码。. 以下是下订单后可能发生的情况： 您必须上传身份证 (护照、我的号码卡 ...
KB5015684: Featured update to Windows 10, version 22H2 by using an ...
The enablement package is a great option for installing a scoped feature update like Windows 10, version 22H2 as it enables an update from version 2004, 20H2, 21H1, or 21H2 to version 22H2 with a single restart, reducing update downtime. This enables devices to take advantage of new features now.
How to prevent and remove viruses and other malware
Discusses how to remove viruses, spyware, rogue software, or malware using Microsoft Security Essentials, Microsoft Safety Scanner and Microsoft Defender Offline.