No Internet after Virus Removal – Ndis.sys
infection of the
Ndis.sys drive (a Windows file which is a component of the Windows networking software). I usually use bootable media to remove malware. Since I'm in a bootable environment I'm able to remove ANY infected file on the hard drive (filesystem). this can be really dangerous if you dont know what your doing.
Why is it dangerous?Infected system files in the Windows folder can be easily deleted thus making the Windows OS unbootable or in the case
"Impossible to use a Network Connection". So, if you've just removed malware with a bootable removal tool and all your network adapters have symbols
(explanation marks) then you're probably missing the
ndis.sys file (or it's corrupted).
To replace your Ndis.sys with a non-infected one you have a few options: 1. Copy one from a non infected PC (make sure the OS's match – do a winver).
2. Copy one (expand) from the OS disc.
3. Type copy
"C:\WINDOWS\ServicePackFiles\i386\ndis.sys" "C:\WINDOWS\system32\drivers\ndis.sys".
Reboot. After you reboot your networking functionality should be restored.
