Contact Microsoft Support. Find solutions to common problems, or get help from a support agent.

Get an error message or error code when making a purchase on Xbox? Find out what they mean.

Try these steps if you’re having trouble buying apps, games, or downloads from the Microsoft Store.

A phishing email is an email that appears legitimate but is actually an attempt to get your personal information or steal your money. Some deceptive emails appear to be from a safe sender but, in fact, have a "spoofed" source address to fool you. Here are some ways to deal with phishing and spoofing scams in Outlook.com. Spoof intelligence in Exchange Online Protection helps prevent phishing ...

Summary This article provides explanations for why verification codes from Microsoft don't always arrive. It includes a list of the most common causes, and solutions for each one. Microsoft is committed to advancing security standards and as such, we will start phasing out SMS as a method of authentication and account recovery for personal Microsoft accounts. Reasons why verification codes don ...

How to manage Kerberos KDC usage of RC4 for service account ticket issuance changes related to CVE-2026-20833

If you receive the error code 101 while playing Microsoft Solitaire Collection on an iOS device, this might be a networking error.

Errors CAA2000B, 4usqa, and 49dvs when trying to sign in to classic Outlook and Outlook for Mac

Use the Quick Assist app to get help with a computer problem from family or friends or help them out. Quick Assist uses a remote connection, so remember to only use it with people you trust, since they can see your computer screen or control your PC (if you allow it).

In this article Summary Discovering Explicitly Set Session Key Encryption Types Registry Key settings Windows events related to CVE-2022-37966 Frequently Asked Questions (FAQs) and Known Issues Glossary Summary The Windows updates released on or after November 8, 2022 address security bypass and elevation of privilege vulnerability with Authentication Negotiation by using weak RC4-HMAC ...