Windows 7 was released on October 22nd, and if early net stats are any indication, users are adopting the new OS at a fast pace.

According to StatCounter, the weekly share of Windows 7 usage went from 1.75% pre-launch to 2.82% at the end of October. Those stats were specific to the US, but global market share increased at the same rate. Windows usage overall (meaning all versions of Windows), however, was down slightly month-over-month, according to Net Applications.

Here are the US and global statistics from StatCounter:

Source: StatCounter Global Stats – Operating System Market Share

Source: StatCounter Global Stats – Operating System Market Share

Windows 7 wasn’t the only OS that saw increases in adoption in October. Both Net Applications and StatCounter also showed an increase in Mac OS X usage. According to StatCounter, Mac OS X usage grew from 11.29% in the US to 11.87%. Net Applications global statistics showed a growth of 5.12% to 5.26%.

The big takeaway is that whether users are using Windows 7 or Mac OS X, adoption to newe