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Hi, I don't know if this have been asked but, I want to install Windows 7 Ultimate 64-bit on a new hardrive, I have 2 hardrives with Windows 7 Ultimate 32-bit installed on one. So if I buy a third can i install 64-bit on it and not loose my stuff on the other two?

So, I recently got a new computer from Dell and it was a Windows 7 (64 bit) computer. I purchased it to replace a computer we already have running, but there is one application that just isn't compatible. The program is called Power-Link. It's a DOS program that reads log files and generates reports based on the files. It's a pretty simple program. It's a program that was designed for the radio industry which means there isn't really a market to shop for alternatives. We've been stuck with it. Anyways, the problem I've been having is that Windows has officially taken the stance that the Windows 7 (64 Bit) operating system will never support DOS programs. So I've been experimenting with DOS emulators such as DOSBox to try and get the program to run, but DOSBox seems to have an issue with it. That's a whole other Forum post. So I'm wondering what I can do to get this program to work. Is there any way that someone has found to get DOS running on Windows 7 (64 Bit)? Other Ideas I've Been Thinking Of - Does Windows 7 provide a way to somehow reduce Windows 7 (64 Bit) to Windows 7 (32 Bit) so that it would support DOS? - Is there an emulator that's better then DOS Box for logging programs? - Also, why was DOS removed in the 64 Bit version?

I use Windows Xp Sp2 32-bit. Most softwares support Sp3 so I downloaded it from Windows site. I still havent installed it because I am afraid that my documents,files and pics would be deleted. So, the question is "Will my data be deleted when I upgrade to Sp3?".