What can i do to speed up a laptop?

ive tried disk cleanup and defrag, deleting unwanted software and files, anti virus and anti spyware scans, and ive used ccleaner. It works a bit for a day or so then slows down. Also start up is slow, but ive stopped what i think are unnecessary startups, but there are things i dont know what they are in the startup list.

What can i do to speed up a laptop?hijack this

Startup programs are usually useless applications installed by your manufacturer. Disabling all of them (from msconfig.exe) won't damage your computer, you can also disable all Non-Microsoft services. That should speed it up.

If you're looking for more speed, try increasing the virtual memory. (System Properties Dialog)

What can i do to speed up a laptop?liveupdate

You best bet is to re-install or recover your XP installation. This would put all the system files back at the beginning of the hard disk and make it quicker again.

Obviously backup all your important documents.

How much RAM have you got? Most recent laptops should be able to handle at least 1GB of RAM 2 x 512MB. You may have to replace both SODIMMS as you may already have 2 x 256mb.
WELL YES YOU ARE DOING ALL THE RIGHT THINGS EXCEPT FOR ONE.FIRSTLY IF YOU DONT HAVE A D DRIVE.THEN GET A PARTITION MANAGER TO DIVIDE YOUR C DRIVE SO YOU COULD ALSO GET A SEPARATE PORTABLE HARD DISK.