Hi! Adny,
From Ormand,
I suggest that you install each OS to separate Partition.
Do not install more than one OS in a partition.
( This may cause any problems!)
If you think that your PC or OS is unstable for some reason,
i.e. you can test a lot of software or change configurations....
then I suggest that you buy Partition Magic, System Commander , Ghost
etc.
This can work!
If you do not know these, then just search Google or by any search
engine.
If you are not heavy or power user, then just install it by Microsoft OS's
installing procedure!
( Of course this can work for any users, !
Make C; partition , primary,
then D, E, F, ... and so on in Logical Portions.
)
in this case, I would use D, or E etc. for heavy use,
and C Drive is just light use...
Good Luck!