Solving the problem of NTLDR loss

I installed Windows 98 and Windows XP dual system, today the system can not boot normally, pop-up "NTLDR is missing…" information, may I ask How to solve?
NTLDR is an important boot file when Windows XP starts. The above message indicates that the file has been lost in your computer. You can copy it directly from the C drive in the same version of the system or directly extract it from the Windows XP installation CD and store it in your C drive. If you are afraid of trouble, directly repairing and installing Windows XP can also solve the problem.
Tip: NTLDR is a dual-system boot file. For example, Windows 2000 and Windows XP require this file. The easiest way to solve this problem is to copy one copy and it will be OK.