I would suggest that you install a larger hard drive (350-500GB) so that Windows can have a much bigger swap file and also see if you can boost the memory to 1GB. This will most likely ease the CPU's load. I can imagine that this 100% CPU load happened shortly after you installed XP's Service Pack 3. I will not install XP SP3 unless the computer has 1GB of memory minimum... That 20GB drive has to go ASAP! 9GB is not enough free space and that drives access times are in the mud for sure :rolleyes:

It has to do with money. Say how much you want to spend and I will say possible recommendations ;-)

Not possible..

Well I live in Pakistan so the currency is in rupees.
So you cant recommend with respect to the money.

But still, I am planning to buy a new desktop system with 1GB Ram , 40 or 80 GB Hard disk and 3.0 GHz processor. It would cost me around Rs.6000 (approximately $70 American).

Well is a dual core processor of 2.2 or 2.4 GHz better than a normal 3.0 or above GHz processor?
What mother board would you suit for these specs?

70$ LOL MAN!!! With

70$ LOL MAN!!! With 70USD You can't buy a good pc. It will be like this one you have. For your money I would say buy a 320GB HDD, 4GB DDR3 RAM, Radeon HD 6770 (or 6670 which is cheaper) and for CPU I would say Core i3 one cause they are cheap and good or from AMD I would say Phenom II X4 840 or AMD FX-4100

The best I can do here in the USA is about $250 for a simple Windows 7 64-bit PC With 8GB DDR3 memory

Calm down, 8GB is useless imo. Except if you are a professional or something. 4GB is more than enough. . Actually if you want to make a "normal" pc buy a pc with more than 400-500 Euros, so that you won't need to upgrade in the near future (if u are not gamer of course).

I'm not excited, why do I need to calm down. I mentioned 8GB (2-4GB DDR3 modules) because it would still fit in the $250 category and it woks nicely with Windows 7 64-bit. I just built a PC for this price

Yes, but with BAD graphics card (for games) and BAD CPU (for games)

Yes it is not a gaming PC, but the users are happy with it's on-line gaming capabilities. You can always add a low profile video card... I built my gaming PC as you see in my specs for $1200

There is no point adding a LOW profile video card, simply because you can choose integrated! Many many many processors have integrated GPUS, like Liano ones, all the Core i-something ones etc. but everyone chooses what he wants

You would be surprised at just how much a good low-profile video card can add to a lesser powerful slim-line computer

I don't know, I just see benchmarks. Of course low-end cards have more features but you don't need money to buy a searate card with integrated ones