I tried to remove AVG antivirus but it was only partially removed.  I installed another antivirus, but then decided to uninstall it and completely uninstall AVG.  I used a special AVG Removal Tool to do it. 

But then I discovered that when signing on to  MSN Premium Email,  it would not ask for a password.  The window goes blank with a request at the bottom for another user to sign on.

I tried to do a System Restore, but found out that I can no longer access MS Help. 

Come to think of it, I did eliminate some services via Glary's Utilites.  Which services are necessary for MSN email?

LET ME BE MORE SPECIFIC:  When I launch MSN Installer, all I get is a blank window.  Perhaps this is symptomatic of the real problem.

I am at a loss as to what to do.  I use MSN Email for my business but don't want to upgrade to 7 or 10. 

I know XP is no longer supported, but if anyone can help, I would appreciate it.