NTLDR is not found during bootup

a) set de cd rom in first position in the bios BOOT/option. Put de windows cd and restart the computer (remember to press any key when requested)  

b) In the first blue windows press R=Repair option. Press the number of your damaged installation of windows (Typically this will be #1). Enter in the administrator password when requested 

c) Enter the following commands (where X must be replaced by your cd rom letter and the letter C for the letter of your windows instalation drive) one in one and enter

COPY X:\i386\NTLDR C\: (enter)

COPY X:\i386\NTDETECT.COM C:\   (enter) 

Take out the CD and type exit