If you have some bugs in your Windows Xp and want to repair it.Then Usually you need a Installing CD to Fix Them.But If you didn’t have then try this.
Repair Windows Xp Without Installing CD
Click on START and then RUN.
This will start the process to repair your windows problems.
Follow the instructions.
In next screen, choose SELECT REINSTALL MODE.
A new window will appear.
Put check marks on all the options and click OK.
This will take few minutes
When the process will complete, it will ask for RESTART your pc
Just Restart your computer and you will be amazed that you have fixed the problems without having BOOTABLE or INSTALLATION CD.