Since its public launch less than one month ago, there are now more than 75 million devices running Microsoft Windows 10, according to Yusuf Mehdi, corporate VP of marketing for Windows and devices.
There have been 90,000 different PC and tablet models that made the switch to Windows 10, and users in 192 countries have transitioned to the new OS. Microsoft is still rolling out Windows 10 in waves, but it's possible to track down a direct download link.
If you're not a Windows 7, 8/8.1 user, it's possible to purchase Windows 10 Home for $119 or Windows 10 Pro for $199.
After Windows 8 publicly launched, it took six months to top 100 million sales - and it looks like Microsoft made the right decision to release Windows 10 as a free upgrade to users. Microsoft wants to see Windows 10 on 1 billion devices by late 2018, and it looks like the company is off to a great start.