This nagging issue has been around for a couple months now, but Windows 7 users can still expect it in certain situations. Microsoft is not fully aware of the exact configurations that cause it, but in those unknown states the Network Interface can stop working after installing the Windows 7 Roll-up.
This month’s roll-up: September 11, 2018—KB4457144 (Monthly Rollup)
After you apply this update, the network interface controller may stop working on some client software configurations. This occurs because of an issue related to a missing file, oem<number>.inf. The exact problematic configurations are currently unknown.
- To locate the network device, launch devmgmt.msc. It may appear under Other Devices.
- To automatically rediscover the NIC and install drivers, select Scan for Hardware Changes from the Action menu.
a. Alternatively, install the drivers for the network device by right-clicking the device and choosing Update. Then choose Search automatically for updated driver software or Browse my computer for driver software.