Use the Information Protection viewer to view protected files in Windows, Android, iOS, or Edge.

Learn how to identify and open encrypted and protected emails no matter what email client you're using.

The Xbox Offline System Update (OSU) process allows you to update your console by downloading a file to a USB flash drive and then installing that file directly onto your Xbox Series X|S or Xbox One console.

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Certificate authority (CA) A certificate authority is an entity similar to a notary public. It issues digital certificates, signs certificates to verify their validity and tracks which certificates have been revoked or have expired. Top of Page Digital signature assurances The following terms and definitions show what assurances are provided by digital signatures. Authenticity The signer is ...

Learn more about the different ways that you're notified of an Xbox enforcement action and where you can get more info about it.

Applies to: Windows Server 2016 This security update includes fixes and improvements that are a part of the following update: November 11, 2025—KB5068864 (OS Build 14393.8594) The following is a summary of the issues that this update addresses. The bold text within the brackets indicates the item or area of the change we are documenting. [PowerShell 5.1] The Invoke-WebRequest command now ...

This page features a list of common error codes and solutions. Learn how to find your error code quickly.

Learn about the network settings on your Xbox console and common network troubleshooting tests.

A popular tactic of criminals is the "fake order" scam. The way it works is that you get a message, usually in email or text, that appears to be a routine confirmation for an order. Of course, you never ordered whatever product or service it's confirming. The message looks common enough, and it says that money will be charged to your credit card or withdrawn from your bank account for the ...