I hate Celeron processor to my gut and I have a death wish on it... This processor IMHO is a slowest processor even though it have same speed as Pentuim processor. The reason why is because it is missing 13 instruction sets in its chips. That's why it's sold cheap. You can easily swap out for Pentuim processor cheap on Ebay if your laptop does have socket to allow you to remove, put Celeron in garbage disposal and flick a switch and watch it die!! The drop in Pentuim 4 processor, "blanket" with Antec silver paste then put heatsink in. Then put all back together and fire up your lappy. You'll see a big performance jump.
It's equivalent to ripping out 4 cylinders engine and dropping in V8 engine in. That's how I explained to my 76 yr old dad about his system. He understood me in a layman's term.
Also upgrade memory too!!
Windows Vista have issue on speed. It ran slooow on any system which was year old or older. You'll have to hack Vista in order to run the speed of Windows 7.
My Acer Aspire 5040 use AMD Turion 64 processor 1.8Ghz and it's running on XP. I did re-install XP and now it's zippy with 2GB Sodimm DDR1 memory sticks. Its Graphic chipset, ATI Xpress 200m been configured to "borrow 256mb (maxed out) from 2GB sodimm. I have loads of programs but avoid unnecessary running programs I belive it can run Winows 7 Preminuim but it may be a bit slow.
Dual core laptops are the best to purchase and you'll love its speed. No more slow bootups. I am seeing Quad core laptops too but it's a battery life killer..
I would agree with other bloggers that It's time to throw out crappy laptop and get new one. Or install Ubuntu on top of Windows (I did on my lappy and it works really nicely) and use it until you save up your $$'s for Dual or Quad core lappy.
I am saving up $$$'s to buy slim 12" or 13" Dual core lappy for my business. No Atoms please!!
Catty