Despite the cries that people like Dunbal are just trolling, I think the parent comment is right on the mark. It would be difficult NOT to image Windows 10 not achieving at LEAST a 5% market-share when ALL of the installed copies of Windows 7 and 8 out there harass users to upgrade to 10 for free.
Not only that, but anyone looking a little deeper into the situation will discover:
- You only have 1 year to take advantage of this free Windows 10 offer, so putting it off means risking forgetting about it until after the deadline
- Microsoft is doing cloud-based storage of your hardware's unique ID paired with the product key for Win 10 now, so it's wise to install Windows 10 on a given computer even if you plan on rolling it right back to a previous OS. It's that initial install that "brands" your PC in the cloud as authorized for Windows 10 from there on out. (Any time in the future - you'll be able to do a clean Win 10 install on that hardware without needing to enter a license key at all. You can just skip through prompts asking for one, and it'll activate automatically when it's done installing.)
It would actually be interesting to know how many people are actually *using* Windows 10 vs. just Microsoft reporting an install count based on the initial installation process. I already had one laptop that repeatedly failed the Win 10 upgrade process, although it got far enough so it was recorded as a Windows 10 machine. (Basically, whenever you'd sign into it, you'd get a Windows 10 desktop that flashed on the screen briefly, but then went to a solid black screen with a movable mouse pointer and nothing else. Oddly, I could hit ALT-CTRL-DEL and a task manager window would pop up on the black background and work normally. But could never get a usable desktop with start menu.)