Thought related to dual boot

This was one weird thing I did a few days back, xD. I was dual booting with windows 7 and windows vista. My brother scolded me to get off Vista from the computer and told me dual booting is sometimes “harmful” which I’m not sure about. So what I did was, logged in windows 7 and typed MS config in start. Went to the boot tab and deleted the vista option, restarted and windows directly loaded to 7. Then later I just formatted the drive. So the thing is I wonder how it loaded me to windows 7 without saying the boot mbr is missing..and I can’t remember if I installed vista first or 7 first. I guess I installed 7 first - not sure :e. what do you guys think? PS I posted this thread cause I see many people posting the same thread about the bootmgr going missing…. Feel free to post any opinions thanks :)

davehc said:

I'm pretty sure you installed 7 last. It restablished the boot partition and manager. When you deleted Vista, all you did was just that - you left the Boot partition intact, with the manager.

hmm, yes I recall installing vista first

gregrocker said:

If you'll post back a screenshot of your maximized Disk Mgmt drive map with listings, we can look it over for you to make sure everything is correct now.

hmm, i didn't think it would mess something?
but no need to do that cause i had done a clean install later
thanks anyway :):):):)
here it is anyway

why the strange?

seavixen32 said:

Because the System Reserved partition is normally the first one on the drive followed by the Windows C partition.

so what does it mean? is my windows installed correctly?
and the system reserved does not show in the drives when i open my computer.
what do i do to fix it?