What is AFS2K?

AFS2K.sys is a Windows driver. A driver is a small software program that allows your computer to communicate with hardware or connected devices. This means that a driver has direct access to the internals of the operating system, hardware etc. The free file information forum can help you determine if AFS2K.sys is a Windows system file or if it belongs to an application that you can trust.

Run a free scan to check for AFS2K drivers in need of updating

AFS2K.sys file information

The process known as Audio File System belongs to software AFS by Oak Technology (

Description: AFS2K.sys is not essential for the Windows OS and causes relatively few problems. The AFS2K.sys file is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 82,380 bytes (45% of all occurrences), 35,840 bytes and 4 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. There is no file information. The program is not visible. The service has no detailed description. AFS2K.sys is not a Windows core file. AFS2K.sys appears to be a compressed file. Therefore the technical security rating is 34% dangerous, however you should also read the user reviews.

Recommended: Identify AFS2K.sys related errors

Important: Some malware disguises itself as AFS2K.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the AFS2K.sys process on your PC to see if it is a threat. We recommend Security Task Manager for verifying your computer's security. This was one of the Top Download Picks of The Washington Post and PC World.


User Comments

CD-Rom Driver by OAK-Software
  Sven Opitz   (further information)
AFS2K is a cd/dvd driver that comes with some distributions of Nero and with a lot of HP products..
I got it when installed software to a Hewlett-Packard scanjet 3670 scanner.
i dont know nothing, all i know is that its not dgitaly signed and it doesent work
my Pc has problems ever since I installed a HP Camera Software and then I installed Nero I wanted to remove Nero and my CD/RW has not worked since
It brings blue screen of death and comes with the driver downloaded from HP - for the scanner 5500c. Can i just delete it?
  Anton Kjær  
It is used by a number of CD Burning Apps
Usually associated with CD burning software & imaging. From Oak Systems
I resolved the problem downloading the program at this link
  nicandr   (further information)
driver of some virtual dvd-rom
  piskvorky   (further information)
Blue Screen Absturz beim Start von age of Empire
interferes with DVD/CD operation

Rating chart

Summary: Average user rating of AFS2K.sys: based on 14 votes with 12 user comments. 7 users think AFS2K.sys is essential for Windows or an installed application. One user thinks it's probably harmless. 5 users think it's neither essential nor dangerous. One user suspects danger. 5 users don't grade AFS2K.sys ("not sure about it").

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Best practices for resolving AFS2K issues

A clean and tidy computer is the key requirement for avoiding problems with AFS2K. This means running a scan for malware, cleaning your hard drive using cleanmgr and sfc /scannow, uninstalling programs that you no longer need, checking for Autostart programs (using msconfig) and enabling Windows' Automatic Update. Always remember to perform periodic backups, or at least to set restore points.

Should you experience an actual problem, try to recall the last thing you did, or the last thing you installed before the problem appeared for the first time. Use the resmon command to identify the processes that are causing your problem. Even for serious problems, rather than reinstalling Windows, you are better off repairing of your installation or, for Windows 8 and later versions, executing the DISM.exe /Online /Cleanup-image /Restorehealth command. This allows you to repair the operating system without losing data.

To help you analyze the AFS2K.sys process on your computer, the following programs have proven to be helpful: Security Task Manager displays all running Windows tasks, including embedded hidden processes, such as keyboard and browser monitoring or Autostart entries. A unique security risk rating indicates the likelihood of the process being potential spyware, malware or a Trojan. Malwarebytes Anti-Malware detects and removes sleeping spyware, adware, Trojans, keyloggers, malware and trackers from your hard drive.

Other processes

AFS2K.sys [all]