I tried with a genuine OS but it still didn't worked.
it is perfectly fine i tested it with "MiniTool Partition Wizard Professional Edition 5.2" and tuneup utilities 2012.after spending 5 min on google searching this error almost all the replies suggested problem at hardware level:hard disk failing,bios corrupted etc.get a linux bootable pendrive image or hiren's boot cd hard disk diagnostic tool(preferred) & check your hard disk health.
I just now i tried on my external hdd manually but got error when booting .
Q1)Please kindly check the method 1 and 2.Can i do this? If yes then how?
Q2)I have installed windows7 from my iso earlier on my pre-installed xp.I just mount it and ran like any other software,and it ran in GUI,and dual booted it.Can i do the same in my dos laptop by just copying it to hdd and run it?
I have checked it .It is perfectly fine.Did you compare the hashes? If not do so once, so that atleast youll be sure of the authenticity of the iso. Theres a program called CyoHash, use it to check. Get the SHA1 of your version from microsofts website.
I am getting error :"NTLDR is missing Press Ctrl+Alt+Del".I have tried "Universal-USB-Installer-1.8.8.9" for it but got the above error.i have earlier used it for Ubuntu and it works fine but now giving error for windows 7.
Please help.