Firstly, Download a free programme called Ccleaner, what it does it deletes all your cookies, history on your computer, So make sure any websites you want you add to favourites.

In this Picture i have deleted over 200mb, once i got over 2.5gb deleted. thats alot of memory for my laptop.

Step 1: Empty the Recycle Bin

Make sure you empty your recycle bin as it may have big files in there you dont want.

Step 2: End Any Programme

end any programme you dont need as it takes up time from where you are using it. unless you are downloading anything from a torrent site like vuze if you are downloading something ;)

Step 3: Uninstall Any Programmes You Dont Need

if you dont use any programmes, uninstalling them will save memory and make the laptop/computer faster

Step 4: Upgrade Your Ramm

Upgrading your ramm will make you compuer/laptop alot faster. getting the right one for your operating system is the thing so. go to a website called www.crucial.com to find out