New
#11
Because MS introduced many limitations with 64-bit versions - these limitation don't allow to offer "full" protection of security softwares:
Wilders Security Forums - View Single Post - 64-bit systems and anti-malware software
and
Wilders Security Forums - View Single Post - 64-bit systems and anti-malware software
I recommend you to read all article at Wilders:
64-bit systems and anti-malware software - Wilders Security Forums