At the moment, Outlook is storing a data file each for my two hotmail
accounts on the C: drive.

What I want to do is have Outlook keep these data files on my D: drive.

I know this is possible with my POP email accounts.

I moved Outlook's .pst files from the C: to D: drive, but when I open
Outlook, it re-creates new .pst files for the hotmail accounts on the
C: drive.

Ultimately, what I want to have is one .pst file for each of my 2 POP
accounts and each of my 2 hotmail accounts: 4 .pst files in total.

Any hints [or step-by-steps!] would be hugely appreciated.

Thanks.