I used Windows Mail with Vista for 4 years on my Laptop. This had no probelms downloading e-mails from 6 Virginmedia accounts.
I have now switched to Windows 8 & use windows live mail. I've set up these account to download receive & send the same 6 e-mai accounts.
However, on the main account, Windows Live mail downloads some mail & not others. There is no obvious reason for this, it appears quiet random. However, this makes Windows Live Mail useless as you have to log onto VM server to check no important e-mail has been skipped over.