Data analytics firm NetMarketShare revealed that Windows 10 has a strong user adoption rate, reaching 64.04% from 61.26% last month. Linux grew from 1.14% to 1.65%, and Ubuntu now has a 0.51% market share. Windows 7's market share has also declined, but many users are still actively using the outdated Windows 7, which could be due to the huge number of corporate users.
According to NetMarketShare, Windows 7 saw its share fall from 22.77% to 20.41% last month. The report shows that 20.41% of desktops are still running Windows 7. Even worse, some are still running Windows XP, according to the report.
As of October 2020, Windows XP's market share is 0.87%. On the other hand, macOS X 10.15 saw a slight decline as it dropped from 5.11% to 4.88%.

Windows 7 upgrade offer
According to testing by BleepingComputer, Microsoft is still allowing Windows 7 users to upgrade to Windows 10 for free using the Media Creation Tool.
You may be able to get a free upgrade to future versions of Windows by following the steps described in the article.
When you use the Media Creation Tool to perform an in-place upgrade, the older license is automatically converted to a Windows 10 digital license and linked to your Microsoft account.
Once you're done, you can always reinstall Windows 10 or upgrade your hardware without paying Microsoft.
It is not known how long Microsoft will allow this Windows 10 upgrade loophole to exist, so if you are using Windows 7, it is recommended that you take advantage of it while possible.
