Tips to make your PC run faster (Win XP)

1. Go to Start>Run and type 'sfc /scannow' without commas. Let Windows fix any errors.
2. Go to Start>Run and type 'cleanmgr' wihtout commas, disk clean utility window will appear, then select the drive to be cleaned and press ok and repeat same step for other drives, this will flush your temporary internet folder, trash can, temp system files etc.
3. Go to Start>Run and type 'dfrg.msc' without commas, disk defragmenter window will appear then select the drive to be defragmented and then press defragment tab to start defragmentation process. Repeat the same for other drives also. (NOTE: run this command after the above mentioned command for better result)
4. If you are looking for best performance of your PC rather than appearance, then go to Start>Run and type 'sysdm.cpl' without commas , system properties window will appear, press the tab named 'Advanced' under performance menu press the tab 'Settings', Performance Options window will appear, press the tab 'Visual Effects' and choose ' Adjust for best performance' and press apply ok and again ok, its done.
5. Go to Start>Run and type 'msconfig' wihtout commas , system configuration utility window will appear then press startup tab and only keep the programs that are essential to load in the tray icon (and hence stay resident in memory). Uncheck anything else non-essential, like an ATI or Nvidia control panel, Quicktime utility, Real Audio, etc. And then press apply tab and then ok tab. This will immensely help to boot the system faster.
   
6. Upgrade drivers! Check for the latest BIOS, video, motherboard, sound, etc drivers from the manufacturers.
7. Also use software like Glary Utilities (download from Internet) to get rid off folder and file duplicacy and to clean up registry.
   

NOTE: I Have listed the steps to start from run command , you can also perform most of these through control panel rather using run command, choice is yours, whatever you feel comfortable with.