Step 1: Go to www.office.com/setup or Microsoft365.com/setup. Step 2: Sign in with your Microsoft account, or create one if you don't have one. Be sure to remember this account so that you can install or reinstall Office later, without a product key.

Use the Office offline installer to install Office 2016 or Office 2013 if you don't have an active Internet connection or you're having problems with slow speed or unreliable connections.

To use Microsoft 365 on your new device, you can activate Microsoft 365 as a 1-month trial of Microsoft 365 Family. You can also buy Microsoft 365 or a non-subscription version of Office, add Microsoft 365 to an existing Microsoft 365 subscription, or enter a product key from a new product key card.

Use these steps to install, reinstall, transfer, or move your product. Go to the Microsoft account, Services & subscriptions page and sign in using your Microsoft account. Select Install for your product. Select the options you want (such as 64-bit and language), and then select Install.

Go to office.com/setup and sign in with an existing Microsoft account or create a new one, then enter your product key. Follow the remaining prompts to finish linking your Microsoft account with this version of Microsoft 365.

Use the Microsoft 365 setup troubleshooter to install Microsoft 365, Office 2021, Office 2019, or Office 2016 on your Windows PC. Select the button below to start the setup troubleshooter. Start

Before installing Project the first time, sign in with an existing or new Microsoft Account and enter your product key* at microsoft365.com/setup. Redeeming your key links your account with the Project app and you only have to do this once.

Describes how to use the System File Checker tool to troubleshoot missing or corrupted system files in Windows 8.1, Windows 8, Windows 7 or Windows Vista.

This topic provides solutions for common errors you might see when you run Microsoft 365 desktop setup. You use Microsoft 365 desktop setup to install updates that enable your current desktop applications, such as Outlook 2007 or Outlook 2010, to work with Microsoft 365.

When you run Setup, you can use command-line options to change some of the parameters that Setup uses to install Visio, such as display settings and default values for Setup properties. Setup and Microsoft Windows Installer use properties to control the installation process.