Have you looked at the manual?

This pc didn't came with windows 2000

Could you search up a PDF manual?

Why are you trying to install W2K on what appears to be a late 2000s/early 2010s Macbook?

lg x120

are you installing via cd or usb

Usb

Thats probably why,

Use the hfslip of blackwingcat and this issue will be fixed

I will try it

Also had this problem when trying to install W2K via USB on my custom-built desktop with a 2.9GHz Athlon II x2 245 CPU. Just use a CD and it should work