Microsoft is aware that some customers are running versions of Windows that no longer receive mainstream support. That means those customers will not have received any security updates to protect their systems from CVE-2019-0708, which is a critical remote code execution vulnerability.

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.

There are a number of possible explanations for why verification codes don't always arrive. Read through the list of the most common causes, and see if any of them apply to you, or use our troubleshooter to help guide you.

If you are having issues installing or updating Gaming Services on your PC, or if you are noticing that the Xbox app for PC is launching with missing content, you may want to download and run the Gaming Services Repair Tool for PC.

Each release of the tool helps detect and remove current, prevalent malicious software. This malicious software includes viruses, worms, and Trojan horses. Microsoft uses several metrics to determine the prevalence of a malicious software family and the damage that can be associated with it.

If you are having problems with Outlook, there are a few things we can help with to get you back to sending and receiving your email. Important: Steps may be different between new and classic Outlook for Windows. To determine which version of Outlook you're using, look for File on the ribbon.

获取 Android 版 Skype 的 Skype 其他 支持，不论身在何处，都能与朋友和家人保持联系。

There are three methods to which you can activate your product: Online via the internet, by telephone using our automated systems, and by a live support advocate. Online: When you begin activation, Windows will try to use your internet connection to activate online.

Virtualization lets your PC emulate a different operating system, like Android™ or Linux. Enabling virtualization gives you access to a larger library of apps to use and install on your PC. If you upgraded from Windows 10 to Windows 11 on your PC, these steps will help you enable virtualization.

Cloud gaming on third-party services. Learn about cloud gaming on Xbox using your Android, iOS, or Windows device.