I want to ask certain questions about using multiple operating systems on a single PC ( Windows XP and Windows 7) together.
1. Can I directly install windows 7 on my PC while I am having XP installed to have both of them on my PC?
2. Will having multiple OS affect the system performance or slow down the PC or have any other negative effect on my PC?
3. Suppose I get a virus on one of the OS, then can that virus spread to another windows also while one of them gets corrupted? Or if one of the windows gets crashed and if I am not able to start my PC with one windows, then can I start it using another PC?
4. Can I access files in one of the OS from another installed OS?