software install problem

I had AVG free installed on a pc and it was detecting some viruses or malware.  I would scan the computer and then remove the threats.  They would keep coming back every time.  I uninstalled AVG and downloaded Kaspersky free.  It started the install and gets to the point where I can click on accept the terms but I cannot check the button.  I cannot close the program with task manager.  When I try it says access denied.  I am the admin of the computer.  Also, when I am in task manager I see an entry that is 94849234834.exe.  This was in there twice and the first time it closed the kaspersky program but there was another right behind it.  When I try to close the 2nd one that is the same number.exe I get the access denied message.  I have since downloded malware bytes and vipre antivirus to get rid of the virus or malware that was there (hopefully).  Now the problem is stopping this kaspersky install from going on.  It comes back after I reboot as well.  Starts right up like I have double clicked it.  It is not in add remove programs of msconfig startup programs.