Or going to be well received. Because it's a Sony, install the OS the machine came with from Sony's restore media. Leave the machine on that OS. Why is something you learn about Sony after a few years.
Some days after installing window 7 (ultimate) I noticed some keys act strangely- that is, it gets acted up twice when pressed twice (nothing happens when pressed first time). The subject keys are ' and ^ . In fact I had to press these twice and then delete one to write this. Thinking that keyboard is the problem, I changed to new original keyboard at Sony's service center. But the same problem continues. Could it be due to some virus?