Before you go and buy the Windows 8 upgrade or the DVD from retail store, it is best that you run the Windows 8 Upgrade Assistant from Microsoft. Currently, I am on Windows 7 Ultimate. I ran through the Windows Upgrade assistant and was surprise to see the possible issues that I would face.
There is a lot of free Microsoft software to be had, programs which enable better web surfing and help protect against spyware are just two types. PCSTATS Tips