The next generation of Microsoft Windows is coming to a screen near you.

The computer giant unveiled Windows 8 for public testing today.

The new operating system works on tablets, P-Cs and laptops.

Microsoft also opened a new Windows Store.

It will be the marketplace for all Windows 8 apps.

For now, the apps are free to download.

Microsoft hopes its new products will help the brand win back some of the luster it's lost to Apple and Google.