Windows 8.1 brings you exciting new ways to use your PC.
Update to Windows 8.1
Windows PC buying guide
Experience an entirely new browser for Windows.
Touch the web
Get started with Internet Explorer 11
Get help for Internet Explorer
Access, store, and share your photos and files from almost anywhere.
Get started with SkyDrive
Get a free, modern cloud email service from Microsoft.
Thin and light, with extended battery life, Windows RT 8.1 PCs are designed for life on the go.
Simplify everyday tasks, work the way you want, and make new things possible.
Learn more about what you can do with Windows Vista.
Get help and information about Windows XP.
Edit your photos like a pro—perfect your photos and share them online.
Your very own movie studio—in one free download.
Get help and downloads for your version.
Bring shows and movies right to your PC.
Get the latest updates for your version of Windows.
Genuine Windows means protection, reliability, and performance.
See what works with Windows.
Get to everything you love—easier and faster.
Run multiple Windows environments, such as Windows XP Mode.
Keep your files automatically backed up, organized, and accessible on a home network.
The most productive infrastructure platform from the workgroup to the data center.
A flexible cloud computing platform that helps you focus on customers, not infrastructure.
Tools and technology to help bring the next generation of devices to market.
Manage and secure your employees' PCs using Windows cloud services.
This free download helps guard against viruses, spyware, and other malicious software.
Make it great with Office on your phone, PC, or browser.