You will be unable to use the internet until you fix this issue. With that, here are a few solutions that were upvoted by most users when trying to resolve this error.

What is the AFD in Windows?

The AFD Ancillary Function driver is a kernel-mode device driver in the Windows operating system. It allows file systems to communicate with network adapters uniformly.  That being said if you spot the afd.sys BSoD error, you’ll automatically know that it is related to your network. You will not be able to connect to any network when you encounter this error.  If you’re wondering why you are getting this error, below are some possible reasons:

New hardware – If you have recently installed new hardware, such as an unsupported processor on your PC, it may be incompatible with your system hence the BSoD error. Outdated OS – Your Windows version plays a big role as it requires the latest drivers for compatibility. If there’s a mismatch, the drivers cannot communicate with your OS. Corrupted drivers – Most BSoD errors are caused by corrupt drivers, so it is worth checking whether you have updated your drivers. Software conflict – This is probably one of the major causes, as many users reported the afd.sys error after installing a game.

How do I fix the Afd.sys BSoD error?

Before any advanced troubleshooting, try these:

Uninstall any recently installed programs that may be causing the conflict. Update your BIOS.

1. Check for Windows updates 

2. Run the DISM and SFC scans

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3. Run a virus scan 

4. Update your network drivers

You should opt for a driver updater tool for a faster and more accurate method. With this utility, you can update all the drivers in one click.  DriverFix is a software program that scans your Windows operating system for out-of-date, corrupt, or missing device drivers and automatically updates them to the latest, most compatible version.

5. Reinstall your network driver 

6. Roll back to a previous network driver

7. Turn off the Driver Verifier

Driver Verifier can help you troubleshoot problems like the afd.sys BSoD error. If you have problems with hardware or an application that you think might be related to a recent driver change, you can use Driver Verifier to test your theory. This utility is perfect for BSoD errors as it works best when a crash occurs and can isolate the drivers responsible. However, you need to be careful with this tool as it can make your system unstable or stop it from working properly.  If you wish to keep this utility on, create a restore point and back up all your files. In addition, do not run it in Safe Mode, as this environment does not load all drivers, making it impossible to pinpoint the problematic driver. That brings us to the close of this article, but check out other related errors, such as the RNDISMP6.SYS error which is also a network-related BSoD error. We’d also suggest that you familiarize yourself with BSoD fixers as they will make the repair process effortless. Feel free to share any other solutions missing from our list that may have helped you resolve this error.

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