How to speed up my pc ?

This is 100$ question how to speed up my pc. This is a big problem that most of the user face and due to this they become irritate and they don't get anything to what to do in the begning your hardware most be updated you must bear a good memory for desktop p.c. it will be better to have 2 G.B. memory but if you have 512 or 128 m.b. ram that also ok for xp user. many times the old files also makes your computer slow. if you think this is also makes your computer slow. if you think this is also problem for making your computer slow than check your all drive and for checking you can follow these step. Right click on that drive which you want to check than choose properties and go to tool tab and click on check now button than if you click on start button than you will receive a dialog box, there you will receive a message if this message than tick on shedule disk check it will take sometime for checking . with window paging also you can speed up your p.c. for this go to setting properties and click on performance setting and go to advance tab and automatically window will start to clean swap files. other way is disk clean up in this go to start menu and go to system tools and choose the files which you want to remove and you can restore your lost files also from here. from diskdefragmenter also you can speed up your p.c. for this go to the destination drive and right click on the drive , go to properties click on tools , click on defragmenter now, and you will get a new dialog box with highlighting on your choosen drive, now finally click on defragment. there is another way to go to disk defragmenter and disk check for that click on start, go to all programs and click on accessories , click on tools and click on disk defragmenter