Originally posted by Moloko
Well, you'll need to overwrite the MBR either way. Windows cannot boot Linux, Linux can boot Windows.
There is no need to re-write the MBR, and Windows certainly can
boot linux. You need to copy over the boot sector record - not as easy (or convenient) as using grub/lilo, but eminently do-able.
Plenty of "first time" users ask this question; I amongst others have answered it more than once - olkar, do some searching here on LQ.
Installing to a separate drive (if available) is certainly a great suggestion. Gives more confidence when you go to format, or repartition. Been there, done that.
If it's not an option, will have to make do with what you have.
I've only installed Mepis on a single disk machine - I don't like automated installers in a mixed environment.
Not sure how it handles this sort of situation - I'll have a look tonight (Eastern Aus time).