Learn how to create a USB flash drive or DVD to install or reinstall Windows 11, 10, 8.1, or 7. You'll need a reliable internet connection, a blank storage device, and a product key (if applicable).

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 download and install Microsoft 365 or Office 2021 on your device, whether you have a Microsoft account, a work or school account, or a product key. Find out how to activate the apps, troubleshoot issues, and get support.

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 upgrade to Windows 11 from Windows 10 using Windows Update, Installation Assistant, or other methods. Note that some devices may not meet the minimum system requirements for Windows 11.

Learn how to cast or mirror another device's screen to your Windows PC using Miracast. Follow the steps to install the Wireless Display app, connect to a wireless display, and add Cast to your quick settings.

Find self-help options or live chat with a Microsoft specialist for Microsoft 365, Office, Windows, Xbox, Surface, and more. Sign in to get the right help and support for your product.

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 speed up your Windows PC with 10 suggestions, such as updating Windows and drivers, restarting, using ReadyBoost, and disabling unnecessary programs. Find out how to check for low disk space, viruses, and malware, and restore your PC from a system restore point.

Learn how to download and install Microsoft 365 offline on a PC with a slow or unreliable internet connection. Follow the steps for your plan (Office for home or Office for business) and activate Office after installation.