PHOTOS: Here’s What Microsoft’s Windows 10 Looks Like. So Far.

Perhaps a more fitting name for Microsoft’s latest operating system would be “Windows 15.” Because in this version, the company has essentially brought back from the dead the best parts of what PC users loved about Windows 7 and reworked them into the look of Windows 8.

You know, 7+8=15.

Seriously, though. The Start menu has returned in Windows 10 (the OS’s real name), but now has “Live Tiles” embedded. And now all Windows apps are back to running in easily managed desktop windows, too.

It’s great news.

Even better news: We have a freshly installed preview build of Microsoft’s Windows 10 up and running. The final version, which won’t be available until sometime in 2015, will likely have differences, but this is a good look at the big concepts that make up Windows 10.