Based on the current momentum, BetaNews predicts Windows 10 will overtake Windows 7 by November.
In July, Windows 10 went from 35.71 percent to 36.58 percent, an increase of 0.87 percentage points. That’s down from the 0.97 percentage points it grew in June, but shows that the OS is still packing on share at a steady rate.In case you're wondering how things are going with Windows XP: it still has 4.07 percent marketshare.
In July Windows 7 lost 0.51 percentage points and now sits on 41.23 percent, just 4.65 percentage points ahead of the newer OS.
If things continue like this, there’s every chance that Windows 10 will overtake Windows 7 by November.