When i install antivirus 2007 it says that microsoft windows installer is messed up. But when i inst

it doesnt say anything. What is wrong?

When i install antivirus 2007 it says that microsoft windows installer is messed up. But when i install 2005 .security

uninstall all of antivirus .reinstall antivirus 207

When i install antivirus 2007 it says that microsoft windows installer is messed up. But when i install 2005 .trojan

Yes, make sure there are no other antivirus programs/versions on your computer before installing a new one.

Now, go to Windows Update and it should automatically update you to the newest installer. You may have to allow an Active X control. Windows Update will not work unless you have the most recent Installer. It updated me to a new one just this morning ;-) good luck