if your after a tune up? save everything important on a memory stick!
Then once your happy with everything that you have saved,switch off laptop,then switch back on while pressing F11 top keys above numbers,this should give you option to reset back to factory settings,once this is selected,let laptop do its thing,then on restart you will have a laptop like the first day you brought it,downside is to re-install your memory stick and security.But worth it,cus factory settings gets rid of unwanted crap from your laptop.