I am unable to reinstall Windows Live Mail (Error: 0x80040609 Source: Contacts) even after uninstalling all Windows Essentials components (from Control Panel or with "cmd"  as was suggested in earlier posts.  [running Win7 x64, AMD 11 x6 and 12GB RAM].

 I have tried about all the suggestions on this site relating to Live Mail reinstall issues, including uninstalled and reinstalled Microsoft.NET 4.5.1 and running the  “cmd sfc /scannnow” reported all files were OK.  I’ve checked Firewall status, etc., and even resorted to uninstalling MSE .  (And now also am unable to reinstall that MS antivirus program as well!! Scary! ) HOWEVER, I could successfully install AVAST antivirus to restore protection of my system ~ and also been able to install and use other ‘registry’ and ‘junk’ cleaners’  (which were suggested elsewhere  in this forum).  Still nothing will allow the install of either the Windows Live Mail ~ or the entire package of Windows Essentials  (or Microsoft Security Essentials!)!   I MUCH prefer the Windows Live I've used for years for my email and want it back ~ Outlook is a desktop space hog .   Thanks for your help! :-)