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Learn how to uninstall or remove apps and programs in Windows 10 or 11 using different methods. Find tips and troubleshooters for common issues and errors.

Learn how to find your BitLocker recovery key, a 48-digit number needed to unlock an encrypted drive in Windows. The recovery key can be attached to your Microsoft account, work or school account, printout, or USB flash drive.

Learn how to use the PC Health Check app or the Microsoft Compatibility Appraiser task to see if your device meets the system requirements for Windows 11 after changing your hardware. Find out how to refresh the eligibility assessment and what factors affect the upgrade offer.

Learn how to activate Microsoft 365 or a non-subscription version of Office using a product key, a Microsoft account, or a trial. Troubleshoot activation errors and get help with Office.com/setup.

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, Publisher for Microsoft 365, Visio Plan 2, Excel 2024, Word 2024, Outlook 2024, PowerPoint 2024, Access 2024, OneNote 2024, Project Standard 2024, Visio Professional 2024, Visio Standard 2024, Office 2024, Excel 2021, Word 2021, Outlook 2021, PowerPoint 2021, Access 2021, Project Standard 2021, Publisher 2021, Visio Professional 2021, Visio Standard 2021, Office 2021, OneNote 2021, Excel 2019, Word 2019, Outlook 2019, PowerPoint 2019, Access 2019, Project Standard 2019, Publisher 2019, Visio Professional 2019, Visio Standard 2019, Office 2019, Excel 2016, Word 2016, Outlook 2016, PowerPoint 2016, Access 2016, OneNote 2016, Publisher 2016, Office 2016, Microsoft 365 for home, Office for business, Microsoft 365 admin, Project for Office 365

Learn how to check for and install updates for Windows 10 and Windows 11, which help your device stay secure and efficient. Find answers to common questions and troubleshoot problems with Windows Update.

Learn how to switch the default search engine in Microsoft Edge to any site that uses OpenSearch technology. Follow the steps to select your preferred search engine from the menu or add a new one.

Learn how to locate your 25-character product key or digital license for Windows 10, Windows 11, Windows 8.1, or Windows 7. See where to find the product key on your device, box, or sticker, or how to contact the manufacturer if you've lost it.

Applies To: Microsoft account dashboard

Find solutions to common problems, or get help from a support agent for Microsoft 365, Office, Windows, Xbox, Surface, and more. Sign in to get personalized help and access live chat with a Microsoft specialist.

Learn how to use keys or combinations of keys to perform tasks faster in Windows 11 and Windows 10. Find shortcuts for desktop, virtual desktop, Windows key, File Explorer, Settings, command prompt, and more.

Learn how to use different recovery options in Windows 11, such as resetting your PC, restoring from a system restore point, or using installation media. Find out how to fix problems with your PC, such as updates, apps, or malware.