What Operating system is it running? If you're on XP you can use Recovery Console to fix the boot sector. Be careful. You want to understand what you're doing.
If you're asking for technical help, please be sure to include all your system info, including operating system, model number, and any other specifics related to the problem. Also please exercise your best judgment when posting in the forums--revealing personal information such as your e-mail address, telephone number, and address is not recommended.
how do I reload a boot manager on my laptop