Google how to toggle the Hard Drive's DMA settings in Windows. You're running in PIO mode right now, and once you flip it over to DMA, you should see a marked improvement in responsiveness.
I have a PCG-FRV31 Sony Vaio Laptop that belongs to year 2003. I was happy using it with my Windows xp until one day its hard disk found some serious problems and I bought a very cheap, but new hard disk(160 GB, IDE). I came home happy and installed my new HDD and windows again, but when I tried to use my laptop it turns out that file operation(copy, cut, move, deletion) is really really slow. And when for example, I try to open my My computer my mouse freezes for few seconds until the window pops up.
I was too down, until hopelessly I decided to use ubuntu(I knew that there was something wrong with hardware, not software) and when I installed the ubuntu, Amazingly, everything was fine. Copy speed was fabulous, no freezing, no crashing. But when I changed back to windows again, same problem.
Could some one please help me and tell me what is wrong???