Microsoft's Windows 10 isn't setting any speed records moving up the desktop operating-system food chain.

The latest edition of Windows snagged a 9 percent share worldwide of all Website traffic generated by desktop operating systems in November, NetMarketShare said Tuesday. That number was up around a percentage point since October. Overall growth had been declining because the initial share of 5.2 percent in August after buy windows 7 professional officially debuted July 29.

The slower uptake in Windows 10 adoption over the past 3 months comes as Microsoft needs to convince consumers that it may still make an appealing and user- friendly operating-system after the misfortune of Windows 8. Many consumers hesitated upgrading to Windows 8, leading Microsoft to provide Windows 10 free of charge for Windows 7 and 8.1 users.

The disposable offer is great for only the first year. Next, Windows 10 will cost $119 for the Home edition and $199 for the Pro version. So growth in adoption from the latest version will be a critical factor for Microsoft over the first half of 2016. The offer has one drawback, however, in that it could prevent Windows 7 and 8.1 users from buying new PCs or tablets, both of which are in a sales slump.

But cheap Windows 10 Pro is designed to work across a variety of devices from PCs to tablets to mobile phones. The Redmond, Washington, tech giant is looking to the newest version of Windows to grab more users across its entire ecosystem. With Windows 10, the software giant has taken back the Start menu, added its Cortana voice assistant making improvements to the entire layout and design in order to bring people on board.

Microsoft also is constantly on the try to enhance Windows 10. On November 13, the company released its first major update to the OS, promising faster performance, improvements to Cortana and more features for that Edge browser.

A Microsoft spokeswoman said the organization would not discuss NetMarketShare's third-party data. In early October, Microsoft said that Windows 10 had recently been placed on more than 110 million devices since its launch. The company's ultimate goal is to see office 2013 standard on more than 1 billion devices within the next two to three years.

Among other editions of Microsoft's OS, Windows 8.1 grabbed an 11 percent share of Web traffic, finally stealing second place from Windows XP having a share of 10.6 percent. Windows 7 remained towards the top of the lineup having a 56 percent share.