Switching between accounts alternative

I was such a happy hotmail customer. Every time I met a new client I would recommend hotmail. I had 4 accounts that I utilize throughout the day and I could seemlessly switch between accounts, review saved emails, and I could keep my bz & life well organized... I was a happy camper for years!!!! Now I can't access saved emails (which I frequently need to do) or switch between accounts. I am forced to log out of one account to view another; the system will not let me keep individual windows open with the multiple accounts. Life is supposed to get better with technology, this has been a hardship. Any suggestions? How can I keep my addresses and go somewhere else? I have contacted MS & Outlook several times, but no one has contacted me. HELP