[NetWork] Network Adapter unable to get LAN or WAN but show available , Ipv4 is disabled

Ipv4 is disabled
It’s happened recently. One PC just suddenly lost the internet connection. The network adapter is available but unable to connect to any LAN or WAN.
And the IPv4 is uninstalled already. The first thought coming was a “Virus”.
So I did this:
GO to the network adapter Properties

Choose “Internet Protocal Version 4 (TCP/IPv4)” -> Install

Choose “Protocal”

Basically you just need to choose the option “Reliable Multicast Protocol” is enough

Or you can download the “inf” file, but now you need to choose “Have Disk”
Them Type this path “c:\windows\inf”

Choose “Internet Protocol Version 4 (TCP/IPv4)

Now the IPv4 should be installed now.
But, But, But.. it doesn’t mean you can connect to LAN or WAN
I provided some commands to help you to indentify the issues
A. If you want to uninstall the network driver and delete the registry, type two commands

wmic nicconfig get MACAddress, IPAddress, ServiceName, Caption, IPEnabled, SettingID

Get your Network NIC GUID, then go to registry HKEY_LOCAL_MACHINE\SYSTEM\ControlSet00x\Services\{GUID}to delete

And

wmic nic get Caption, PNPDeviceID, ServiceName, NetConnectionStatus

Get your Network NIC PCI GUID(PCI\VEN_XXXX&DEV), then go to registry HKEY_LOCAL_MACHINE\SYSTEM\ControlSet00x\Enum\PCI\VEN_{PCI_ID} to delete

because it needs “System” authorization to delete, so you can download a tool

Call “RunAsSystem”, download here

double click and type “c:\windows\regedit.exe”





B. This netsh commands, I’ve tried but not helpful

netsh interface IPV4 uninstall

netsh interface IPV4 install

Reset WinSock

netsh winsock reset catalog

Reset IPv4 stack log

netsh int ipv4 reset reset.log

or

netsh int ip reset reset.log

C. Type this arp command

arp -a

If there are some records not belong to your LAN DNS records, congratulation!!!

YOU GOT A VIRUS!!!

D. Use SpyBot ot some anti-virus software to detect them