Having had my fill of windows problems that I can't resolve, I have installed Edubunto Linix at my son's suggestion. All versions of Linix are free, and have free software such as OpenOffice with a spreadsheet, music and video, and more. I am using it now with Mozilla Firefox as the internet explorer.
I assume thet Edubunto is named for it's educational software and games. I tried one that has you assemble atoms to make molecules. Excellent!
One problem with Firefox is that I can't log onto CR4, even if I run it from windows. CR4 will not accept my logon or password when I use it. Could it be that CR4 uses windows software for their servers? Try Linux, it is the most common system used on servers, and it's free.
I still have my windows system installed. Linix has a partitioner that allowed me to use part of the hard disk for Linix and leave part of it alone. It can read and write to the windows portion if it's Fat32, and can read from NTFS format.
The claim is that Linix is much less susceptible to viruses and worms, so it's the thing to use for the internet. I'm excited at the possibilities.
StandardsGuy