Hard Drive Failure?! Save my old computer. :) I have an older computer and it was working just yesterday, and I was just about to use it to do calculations 20 hours a day, but that doesn't look like it will happen. It's a Pentium I - 133Mhz computer, and it runs Windows 95. The current display is... DISK BOOT FAILURE, INSERT SYSTEM DISK AND PRESS ENTER I have no clue what they are talking about when they say "SYSTEM DISK". What specifically is it? Since I probably don't have it, can I download it? Other info... I just installed a DVD/CD-Writer in it, on Friday, to replace the non-working CD Drive. I did not burn any cd's or anything like that, I just did a simple test to see if it works and it did. After that, I tried to install Windows 98, but you need Windows 98 Upgrade, so I didn't bother with that anymore. Also, it was not being used for about a year too, and I just pulled it out to start using it. That's about all I have to say that can relate to a possible problem. MORE HELP ABOUT SOMETHING ELSE... I wanted to upgrade to Windows 98 because I wanted to run some Visual Basics .NET applications, but since I couldn't do that... I thought why not learn JAVA since Windows 95 can run that. I was thinking to just build the program on my "faster" computer and transfer it to the old one. There is one problem though, I can't open MS-DOS on my Windows XP computer. It mentions something about not being able to run under windows applications or something. What can I do? Note: I would like to save my Pentium I if possible, and I still want to learn JAVA even if it dies.