Enter in Windows 2000, input separately
Attrib C: / NTLDR -S -R -H Attrib C: / NTDetect.com -s -r -h
Press the Enter key after the input is completed. At this point you have completely released the system, implicit, and read-only properties of these two files. Now copy these two identified files from the I386 folder of the Windows XP installation CD to the C drive root directory, and override the original file. At this time your dual boot menu has been restored. However, we can hide the two files, the method is to enter:
Attrib C: / NTLDR S R H Attrib C: / NTDetect.com S R H
This will re-give that two file systems, implicit, and read-only properties.
Look up and take a look, your dual boot menu is completely normal.
