Learn how to activate Windows 11 using a digital license or a 25-character product key. Find out how to check your activation status, link your Microsoft account, and troubleshoot activation issues.

Learn how to mirror or project the screen of another device to your Windows PC using Miracast. Follow the steps for Windows 11 or Windows 10 to install the Wireless Display app or the Connect app and select the device you want to cast to.

Learn how to add, remove, register, or rename devices on your Microsoft account, such as Xbox, Windows, Mac, Android, or iOS. Find out how to fix problems with apps, get service or repair, or lock a lost device.

Learn how to buy, redeem, and manage Microsoft and Xbox gift cards and codes for subscriptions, content, and devices. Find answers to common questions and issues about gift cards and codes.

Learn how to use 25-character codes to make Xbox purchases and extend your subscriptions on different devices and platforms. Follow the video instructions or the step-by-step guides for Xbox, PC, mobile web, and Microsoft Store.

Learn how to play different formats of audio and video files with Media Player and codecs. Find out which codecs are included with Windows and which ones you can install from the Microsoft Store.

Find out how to download and install Office 2016 on your PC or Mac, or reinstall it if you already have a product key. Learn how to activate Office 2016 and troubleshoot common issues.

Learn how to use PC Health Check app to check your Windows device health, performance, and eligibility for Windows 11. Download and install the app from https://aka.ms/GetPCHealthCheckApp.

Learn how to enable virtualization on Windows 11 to run Android or Linux apps on your device. Follow the steps to access the UEFI (or BIOS) and turn on Virtual Machine Platform.

Learn how to find, add, turn off, and remove extensions in Microsoft Edge, the browser for Windows 11 and Windows 10. Extensions are tools that customize your browser experience and offer you more control.