Learn how to redeem a gift card, code, or Office product key and spend your balance at Microsoft Store online, on Windows, or Xbox.

Change from a 32-bit version to a 64-bit version or vice versa. Activate Windows. Fix Bluetooth problems in Windows. Learn how to install, reinstall, or activate Microsoft 365 or Office 2019 on a PC or Mac.

You can use installation media (a USB flash drive or DVD) to install a new copy of Windows, perform a clean installation, or reinstall Windows. To create installation media, go to the software download website, where you'll find step-by-step instructions.

Find your Office product key. Office 365 Office 2019 Office 2016 Office 2013. Many tasks for Office products don't require a product key because your Microsoft account takes care of them instead. Using product keys with Office.

If you get an email about unusual activity on your Microsoft account, or if you’re worried that someone else might have used your account, go to the Recent activity page. You’ll see when your Microsoft account was signed in during the last 30 days, along with any device or app-specific info.

You see the following error message when you're downloading an update to your Xbox 360 console: System Update Failed. Can't update your console. Please visit www.xbox.com/support. The message is accompanied by error code xxxx-xxxx-xxxx-xxxx-8B05-0018. Note The “x” digits vary.

Install Office 2010. Excel 2010 Word 2010 Outlook 2010 PowerPoint 2010 More... Important: Office 2010 is no longer supported . Find out what your options are here. If you still need to install this version, you'll need an Office 2010 installation disc and a product key for the version you're trying to install.

Give your PC a Fresh Start. Resetting your PC lets you perform a clean reinstallation and update of Windows while keeping your personal data and most Windows settings intact. In some cases, a clean installation may improve your device's performance, security, browsing experience, and battery life.

Learn how to activate Windows using a product key or digital license, check your activation status, and link your Microsoft account.

Open Control Panel in Windows. In the search box next to Start on the taskbar, type control panel. Select Control Panel from the list of results. Note: Many Control Panel features are simpler and faster in Settings . Open Settings.