Network Interface Controller

The system is a Dell Precision T7600 64 bit

The Network Adapter is a Intel 82574L and 82579LM 

The kids deleted all the files except Internet Protocol Ver 6 and Ver 4

I would like to know how to reinstall the deleted files?

I think they were

Link Layer Topology Discovery Mapper I/O Driver

Link Layer Topology Discover Respond

Client for MS Networks

QoS Packet Scheduler (NOT SURE about this one)

I am not much of a hardware guy mostly software development

I do have a backup on a external drive but I will loose about 2 months of Kotlin programs so not excited about that option.

This all started when they changed the config for Jumbo Packet from disabled to 9014 bytes so videos would run faster bad idea