I have a problem with my Windows 2000 Professional. When I try to boot up my laptop, all I keep getting is the message that Windows 2000 can't start because the <windows 2000 root>\system32\ntoskrnl.exe is missing or corrupt, and to reinstall the file. My bigger problem is the fact that my laptop didn't come with a Windows 2000 disk to reinstall it. Is there any way I can download what I need without paying $100+ for a disk?