Power on your computer and start with bootable windows XP cd
In first step window will load installation files.
Select any drive ( C: ) for installation.
Select NTFS to format the partition.
Setup will copy files on this drive and it will try to restart PC.
After restarting when you see Xp logo, press (Shift+F10).
It will open (CMD) prompt.
In CMD prompt type (Taskmgr)
It will open task manager. Now go to “process” tab and find “Setup exe” Right click on setup.exe and select “Set priority”
You will see a submenu. Here priority will be normal. Select priority to (High) or above (