Which operating system is more user friendly?

I think Windows 7 is more user friendly.

Microsoft Windows XP 2007, and 2008

Uno de los sistemas operativos más utilizados es Windows en todas sus versiones.

Windows including 7 and 8

Always Windows XP..................

window xp is the best operating system.

Windows XP and Windows 7. Windows 7 Are the best.

windows 10 on lumia phone nd on laptop

I do have experienced that windows 7 is the most stable version of windows i have used.

i am using window 8 and it looks like more friendly than others.

Windows by far is the best operating system.

All Windows including XP, 7 and 8

Definitely Windows OS (Especially Windows 7)

I use Windows 8 on a laptop and a tower, no touch screen, and I don't mind. For serious work, mobile devices are too limited, imo

Have to agree with you phillipe, although I prefer the old school feel of windows 7 to the touch screen / iphone feel of 8, but thats just a personal preference :-)

To the person who responded Windows XP, I guess you haven't heard Microsoft stopped surpporting it a few years ago.

Windows 8 performs better, and the 8.1 version is not that different from Windows 7, so that's my choice, especially with Windows 10 right around the corner, upgrading will be easier

Windows 7, thank you very much...

I think Windows7 operating system is more user friendly

Windows 7 is the best OS from Microsoft I have ever experienced...
Easy to install... Crash free... Fabulous Graphics Support for HQ Games.. And more...
Windows Vista is the worst OS from Microsoft...

Windows 8 and Ubuntu