Introduction This article contains information about how to troubleshoot problems that affect the ability to sign in to Microsoft Office apps for Mac, iPad, iPhone, or iPod Touch. This article also contains resources for IT administrators to address reports about Active Directory Federation Services (AD FS) issues that are specific to Office for Apple iOS and Mac platforms. In this table ...

Unexpected sign-outs in Microsoft 365 iOS apps with Intune MAM Last Updated: June 29, 2026 This article describes a known issue affecting Microsoft 365 mobile apps on iOS and iPadOS devices that are managed with Microsoft Intune app protection policies, also known as mobile application management (MAM).

Error 0x87DD0019 means there's an XBOX Live service outage or you're experiencing a connection error.

Hey XBOX Insiders! We are releasing a new XBOX Update Preview to the Alpha Skip-Ahead ring today. Continue reading below to learn all about what's included with this update.

Currently, there's an issue where Microsoft 365 email accounts are being disconnected from Apple Mail. Microsoft is aware of this issue and actively working to resolve it. In the meantime, to resolve this issue, please follow these steps. Re-enter your login credentials When prompted, click Edit Settings in the Apple Mail app and re-enter your login credentials. If you don't see the message in ...

Resolution Steps iOS/iPadOS users must take the following steps to access their accounts: 1⁠. Open the Settings app on your iPhone. 2⁠. Scroll down and tap on Mail. 3⁠. Select Accounts under the Mail settings. 4⁠. Tap on the email account for which you need to re-enter the password. 5⁠.

This topic applies to Office 365 operated by 21Vianet in China. How to set up Exchange email on an Apple iPhone, iPad, or iPod Touch.

Learn how to resolve common problems with the OneDrive app on your iPhone or iPad, including sign-in, syncing, and upload issues.

Select Sign out and sign in with a different account to sign out of the service, app, or website with your work or school account and sign in with a different account.

Introduction The article outlines the new Application Control for Business (formerly known as Windows Defender Application Control (WDAC)) handling logic for signer rules where a TBS hash value for a Microsoft intermediate certificate authority (CA) is specified. Microsoft Issuing CAs Microsoft and Windows components are signed by leaf certificates mainly issued by six Microsoft Issuing CAs ...