Windows 7 KB4099950 fixes NIC settings and IP address issues

2 min. read

Updated onApril 23, 2020

updated onApril 23, 2020

Share this article

Read our disclosure page to find out how can you help Windows Report sustain the editorial teamRead more

Microsoft provided cumulative Spectre and Meltdown protection withWindows 7 Monthly RollupKB4088875 and security update KB4088878. However, many users have experienced various issues after installing the respectivepatches.

As a result, Microsoft rolled out a new update forWindows 7 Service Pack 1and Windows Server 2008 R2 to fix these problems.

KB4099950is a maintenance update to fix the problems with the virtual network adapters caused by thesecurity updatesofPatch Tuesdayin March. The bug was replacing the existing adapter and breaking down network connections as Microsoftsaid:

A new Ethernet Network Interface Card (NIC) that has default settings may replace the previously existing NIC, causing network issues after you apply this update. Any custom settings on the previous NIC persist in the registry but are unused

Downloading and installing the new update

This update can be downloaded and installed automatically from Windows Update. Alternatively, the standalone package for this update is also available on theMicrosoft Update Catalogwebsite.

Please be aware that if you have installed one of the above-mentioned updates and then manually restored the adapters, you have to uninstall the update. Afterward, install the new update KB4099950 and then KB408875 or KB408878.

Microsoft is not aware of any issues affecting this update, so the install process should go smoothly and you shouldn’t encounter any issues afterwards either.

Have you installed KB4099950 on yourWindows 7computer yet? Tell us more about your experience in the comments below.

With KB5043178 to Release Preview Channel, Microsoft advises Windows 11 users to plug in when the battery is low#

Copilot in Outlook will generate personalized themes for you to customize the app#

Microsoft will raise the price of its 365 Suite to include AI capabilities#

Death Stranding Director’s Cut is now Xbox X|S at a huge discount#

Outlook will let users create custom account icons so they can tell their accounts apart easier#

Windows 7 KB4099950 fixes NIC settings and IP address issues#

Downloading and installing the new update#

With KB5043178 to Release Preview Channel, Microsoft advises Windows 11 users to plug in when the battery is low

Copilot in Outlook will generate personalized themes for you to customize the app

Microsoft will raise the price of its 365 Suite to include AI capabilities

Death Stranding Director’s Cut is now Xbox X|S at a huge discount

Outlook will let users create custom account icons so they can tell their accounts apart easier

Windows 7 KB4099950 fixes NIC settings and IP address issues

Downloading and installing the new update