Activate Windows | Microsoft Support
Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.
Find your BitLocker recovery key | Microsoft Support
Summary A BitLocker recovery key is needed when BitLocker can’t automatically unlock an encrypted drive in Windows. This is a 48‑digit number that lets you regain access to your drive.
Account & profile | XBOX Support
Find everything you need to manage your Microsoft account, XBOX profile, and more.
Request a refund for digital games | XBOX Support
Find out how to submit a request for a refund for a purchase of digital XBOX content.
Download Microsoft Authenticator | Microsoft Support
The Microsoft Authenticator app helps you sign into your accounts when you're using two-step verification.
Install Project | Microsoft Support
Project Online Professional or Project Online Premium: If you have a subscription to one of the cloud-based solutions of Project you won't see an option to install it unless you have an assigned license. If you're the Microsoft 365 admin responsible for assigning licenses, see Assign licenses to users.
Applies To:
Project Online Desktop Client, Project Professional 2024, Project Standard 2024, Project Professional 2021, Project Standard 2021, Project Professional 2019, Project Standard 2019, Project Professional 2016, Project Standard 2016, Office 365 Small Business
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Sign in to Microsoft 365
Learn how to sign in to Office or Microsoft 365 from a desktop application or your web browser.
Applies To:
Excel for Microsoft 365, Word for Microsoft 365, Outlook for Microsoft 365, PowerPoint for Microsoft 365, Access for Microsoft 365, OneNote for Microsoft 365, Project Online Desktop Client, Publisher for Microsoft 365, Excel for Microsoft 365 for Mac, Word for Microsoft 365 for Mac, Outlook for Microsoft 365 for Mac, PowerPoint for Microsoft 365 for Mac, OneNote for Microsoft 365 for Mac, Excel 2024, Word 2024, Outlook 2024, PowerPoint 2024, Access 2024, OneNote 2024, Project Professional 2024, Project Standard 2024, Visio Professional 2024, Visio Standard 2024, Office 2024, Excel 2024 for Mac, Word 2024 for Mac, Outlook 2024 for Mac, PowerPoint 2024 for Mac, OneNote 2024 for Mac, Office 2024 for Mac, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Professional 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Excel 2021 for Mac, Word 2021 for Mac, Outlook 2021 for Mac, PowerPoint 2021 for Mac, OneNote 2021 for Mac, Office 2021 for Mac, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Professional 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Project Professional 2016, Project Standard 2016, Publisher 2016, Visio Professional 2016, Visio Standard 2016, OneNote for Mac, Microsoft 365 for home, Office 365 Small Business, Microsoft 365 admin, Project Online, Microsoft 365 for Mac, Project for Office 365
How to sign in to Hotmail | Microsoft Support
Hotmail is now Outlook.com. Learn how to sign in to access your Outlook.com, Hotmail, Live, or MSN email account.
Applies To:
Outlook.com
Download and install or reinstall Office 2021, Office 2019, or Office ...
Learn how to install Office 2021, 2019, or 2016 on your PC or Mac.
Applies To:
Office 2021, Office 2021 for Mac, Office 2019, Office 2016, Office 2016 for Mac