Re-start when opening program in Windows 8

I down loaded the Cox/McAfee Security Suite.  Immediately, I got three or four "Trojan" warnings, "Threat removed, no further action required."  Now, when I open a program, I get a message "A bit of a problem has occurred.  We will gather some information and restart your computer."

Really annoying.  It restarts about every 5 to 10 minutes.  Has anyone found a solution to this problem? 

Microsoft support isn't a whole lot of help.  There's a "root boot" solution involving starting Widows in safe mode.  Windows 95, no problem.  Windows XP, too.  Vista, maybe.  Windows 8?  I don't even know where the "Start" button is.  None of my software works, none of the Office, Photoshop, or Acrobat.  Cox mail doesn't work.  Arrrrgggg

I think Microsoft has finally created the software that will kill PCs.  I'm ready to toss this brand new computer and go get an Apple.  Since I have to replace all my software anyway...