This article provides a comprehensive guide on using OneDrive on mobile devices, specifically Android and iOS. It includes step-by-step instructions for downloading, installing, and signing in to the OneDrive app, as well as managing files, sharing files, and accessing files offline. The article also offers tips and tricks for optimizing the use of OneDrive on mobile devices and ...

Windows iOS Android View protected files in Windows using the Microsoft Purview Information Protection viewer If you are trying to open a protected file in Windows and it does not open properly, then you will likely need to use the Microsoft Purview Information Protection viewer for the desktop. The information protection viewer supports the following file types and environments.

Whenever you sign in to your Microsoft account, you may also get sign-in approval notifications in the Outlook mobile app. You will see sign-in requests appear either on the lock screen or in the Outlook mobile app. You'll also be able to get one-time passcodes, which you can copy/paste into other sign-in screens.

Learn how to boost productivity with Microsoft Copilot Chat. Get AI-powered help for business tasks via the Microsoft Copilot app on iOS and Android.

If you are having problems signing in with a passkey, check the error messages or scenario from the sections below, and select to expand for more information. If you ...

What is Secure Boot? Secure Boot is a security feature in Unified Extensible Firmware Interface (UEFI) based firmware that helps ensure that only trusted software runs during a device's boot (start) sequence. It works by verifying the digital signature of pre-boot software against a set of trusted digital certificates (also known as certificate authority or CA) stored in the device's firmware ...

Learn how to install the Microsoft Copilot mobile app on your iPhone or iPad and use the apps with Microsoft 365.

About digital signatures and certificates in Office, and buying a digital certificate from a certificate authority or create your own.

How to create or edit your Outlook signature for email messages. Include your signature, text, images, electronic business card, and logo.

Signing your email messages with a digital ID helps to prove your identity and prevent message tampering.