Insert CD of windows XP in cd drive in computer and restart the computer.

'Press any key to boot from cd' such message appear on screen.

Wait till the partition window appear on screen.

For deleting previous partition , click on that partition,first click “D” then “L” to confirm that deletion.

After deleting all partition,create New partition by clicking “C” key from keyboard,create partition according to your needs.

After Creating new partitions,click enter to install that partition.

For formating previous partition,choose option “format using NTFS file system”,then automatic process goes on until computer is restarted and new window appear on screen —→ Automatic process goes on —→ ask for your name —→ enter any name —→ click “next” —→ computer restart and window XP start normally.

Install necessary drivers (Like LAN driver and Graphics driver) of windows XP from CD specific for that CPU processor.