If you have bought and installed an SSD (Which are roughly 10 times faster) than standard SATA hard drives, there are a few things you should do to make things run better in windows.
1) Sean’s Windows 7 Install & Optimization Guide for SSDs & HDDs:
This Guide is superb tells you everything you need to do with tutorial videos as well, also a windows 8 Guide.
2) Solid State Drive (SSD) Tweaks for Windows 7
Lifehacker’s Complete Guide to Windows 7:
This is a dam awesome guide on just about everything you wanted to know about Windows 7 its a must read.
windows 7 vs Vista and CP – Gaming Benchmarks:
Heres another article that shows benchmarks between the 2 Windows Os’s and basically says that windows 7 is better than Vista. The benchmarks show a tiny difference but i using Windows 7 myself it sure does seem a little faster;
Windows 7 on multicore: How much faster?
Is Windows 7 better with multicore Processors well not quite but a little seems to be the answer.