QUESTION :
I have various versions Windows 7 installed on my test machine. I want to do the testing for windows vista.
I am just worried, if I install Vista and its earlier version of windows os, if it will it overwrite the boot manager? If no then great and if yes then how can I install Vista with proper boot manager entry?
ANSWER :
If it’s an option running it in VM with something like VirtualBox seems just the ticket.
I just installed Vista on system with windows 7. It did not overwrite it.Thank God!
If Windows 7 is your primary operating system you can all use the Windows Virtual PC which is a free addin for some versions of windows (Pro and higher I think)