Mi windows vista no me arranca

Hola,
Mi portatil acer con windows vista no me arranca pork me sale windows boot manager
me dice:

Windoes failes to start. A recent hardware or software chage might be the cause. To fix the problem_

1 Insert youer Windows installation disc and restart your computer
2 choose your language settigns and then click NExt
3 Click Repair your computer

If you not have this disc, contact your sustem administrator or computer manufacturer for assistance
File:/Boot/BCD
satatus:0xc000000f
Info: An erroro ocurred while attempting to read the boot configuration data.


No tengo el dico de windows ni tengo ganas de llamar al tecnico para k me la clave aver si me podeis dar una solucion sencillita muchas gracias espero sus respuestas