I have had two laptops with wireless adapters which refused to enable?
The problem was eventually traced to free Zonealarm (Firewall only).
It would seem that if a wireless adapter (PCI-E or USB) is installed after free Zonealarm, It is then not possible to enable the wireless adapter.
This only seems to occur on Windows 7 64 bit, Windows 7 32 bit seems
to be OK.
The only resolution I have found to this problem is to de-install Zonealarm.
The wireless adapter will then enable, and free Zonealarm can be re-installed
and all will be fine.
Seems to me this an issue with free Zonealarm firewall when running on
Windows 7 64 Bit?