I need help! I have no idea how to do this correctly. My Sony Vaio laptop is 5 years old and I dont haveany recovery disk for it . I am currently missing my Windows Root.system32\ntoskrnl.exe. file. I did currently purchase Windows 7 but it will not let me install until the file is fixed! What can I do? I mind you I am using spare laptop that is more than 10 years old Windows XP Professional and its very slow and annoying. Someone please help step by step would be great!Thanks so much