belardo :
The tighter Microsoft squeezes us, the more we slip through their fingers.
Really, why do most of really need a Microsoft OS for? I haven't gone Linux yet... but check this out. Linux costs $0. Upgrades = $0. There is no OEM, Retail, Upgrade, Home, Basic, Pro whatever versions.
There's also no activation schemes or keys, no reactivation after changing hardware, no problem using one disk to install on all of your machines, no problem creating a flash drive version of your desktop, no 3 year wait between versions, no development behind closed doors and no secret bug trackers.
I'm migrating in a few years. In a few months, I remove Win8 from my test-notebook (used to warn people about Win8) and it'll be my Linux machine. Then, my main machines... and no more Microsoft.
What you need to do now to make the transition easier is to start switching your software. I started two years previous to begin removing myself from the vendor lock-in, and my criteria was when all else was equal choose cross-platform, and if all else was still equal choose open source. When I actually did switch to Linux, I could continue using Firefox, Opera, Google Earth, RapidMiner (data mining suite), Java, SMplayer, VLC, Truecrypt, Dosbox, 7-zip, LibreOffice, Free Pascal, Python, GnuCash, VirtualBox, Calibre, Miro, XBMC, GIMP, Spyderoak and lots of other software just as I did on Windows, which made the transition practically painless. The WINE compatibility libraries have no problem the few unusual Windows programs I didn't have close equivalents for.
I also recommend skipping the "use Ubuntu!" advice you'll hear. As a Windows user, you'll be right at home with the KDE desktop. In fact, when I switched in 2010 from XP I got all of the features of Windows 7 combined with all of the major new features touted for Windows 8 (pause file copies, mount ISOs, copy-on-write file system, install on flash drive, even an
optional touch interface, etc.) two years early and for free. I'd try OpenSUSE with the default KDE desktop option; that's what I settled on and haven't regretted it at all. I've also gotten a lot of things still not available with Windows like virtual desktops and one tool to update and manage all of the software on the system, and not having to hunt for drivers or set about installing flash, pdf viewer, codecs, archiver, etc., etc., etc. after installing Windows to make it usable is also wonderful. Having complete control over your own system is also a great feeling the first time you notice it, and you'll never be able to go back once you do. That MS could delete the registry key that allowed someone to disable Metro just sounds absurd and unthinkable to me nowadays and I can no longer understand how people can stand for it.
You won't regret the switch, and you'll be surprised how fast after installing Linux as a dual-boot setup that you're ready to get rid of the Windows partition because you never boot it into it. All the components of Linux are on a rapid development model and with everything in the open and people able to contribute (in ways such as testing or translating as well as coding) you might find you actually become excited about computing and software again - at least i did. There's always something new coming out or being worked on, and most distros have new releases every 6 or 8 months. You might also want to check out the Linux Action Show at jupiterbroadcasting.com for some great weekly podcasts about Linux and a large archive of previous shows. There's a lot of useful information and it's very entertaining - I was watching before I switched.
I hope this helps. If you ever need help contact "alcalde" at the Linux Action Show subreddit and I'll help you out.