My daughter got a Security Shield virus on her laptop and I managed to remove it using this very helpful BC thread:
The laptop uses Windows 7.
The removal seemed to work fine, although one slightly odd thing (compared to the thread's advice) was that I didn't have to change the LAN settings/Proxy server when I booted up in Safe Mode - the virus was preventing internet access but didn't appear to be doing so by the Proxy server change.
So I was able to access the internet perfectly well when in Safe Mode with Networking. I downloaded everything I needed using the laptop wirelesly and scanned/removed the 2 security shield virus files using malware bytes. Then, when I rebooted as normal in order to complete the process and update the HOSTS files, I couldn't access the internet wirelessly. The router is working fine and when I connect via ethernet cable the laptop communicates fine with the internet. It just refuses to let me connect wirelessly.
I have tried:
Checking all firewall options in McAfee (though I guess this wouldn't enable a wired connection either if it was the problem)
Removing and reinstalling the wireless device (via device manager)
Deleting and resetting up the wireless profile
Just not sure what to do next....
Any advice appreciated!