For Android, you can get our beta app by joining our public Android Insiders group. For iOS, you'll first need to install TestFlight on your iOS device. You can find it here or in the App Store. Once TestFlight is installed, you can join from your device. You'll then be able to download and install our beta app via TestFlight.

Summary The /INTEGRITYCHECK linker option provides Windows kernel digital signature verification for user mode Portable Executables (PE) files. This linker option is required for anti-malware and anti-cheat scenarios to register components with the Windows Security Center. You must sign IntegrityCheck-linked user mode PEs using Trusted Signing (formerly Azure Code Signing). The cross-signing ...

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

若是 iOS，您必須先在 iOS 裝置上安裝 TestFlight。 您可以在 這裡 或在 App Store 中找到它。 安裝 TestFlight 之後，您就可以 從您的裝置加入。 然後，您就可以透過 TestFlight 下載並安裝我們的 Beta 應用程式。

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 ...

Properly authenticated messages received from postmaster@outlook.com, postmaster@microsoft.com, or service.microsoft.com are legitimate messages that might be sent to your work or school account, or your personal Microsoft account, or work or school account where Microsoft is the email provider.

Using Authenticator as a way to sign in If you have turned on passwordless, two-step, or multi-factor authentication for your account, use the following steps to sign-in: Go to the site where you want to sign in. Enter your username at the sign-in prompt and select Next. Select Send notification.

Learn how to add all your different accounts to the Microsoft Authenticator app.

Get answers to some basic questions about what two-step verification is, and how to set it up and use it to help keep your Microsoft account more secure.

Good news everyone! You can apply to the Microsoft Insider's program to test our pre-release builds. Follow this link to join the program. Thanks for your help and hopefully you'll enjoy some of our features before the public receives them! Because we have limited spots, it might take some time for you to get an invitation. But as soon as there are some available, we'll be sending you a message.