Hi, i cannot get inside windos xp. i'd like to reinstall or reboot my laptop. what am i goin to do? I dont have cd rom. pls. help thanks.

Hi,

Make sure that the OS is not corrupted, You can try first setting the computer in safe mode by tapping the F8 key or last known configuration. If happens you were able to set computer to safe mode. try to do system restore or last known configuration. You can select particular date to restore the system. this is very effective.

Note:
To verify if you have hadrware issue you can just try accessing the BIOS.

Without the XP CD, you're kind of stuck. If you can get one from a friend, it'll work fine. Once you get a disk, you can boot from the disk by setting your CD-ROM drive as the boot drive or run setup on the disk to start the reformat/reinstall process.