What is smwdm?

The genuine smwdm.sys file is a software component of SoundMAX Digital Audio Driver by Analog Devices.
Available from Analog Devices, this SoundMAX driver is a digital audio driver using the Windows Driver Model. The Windows Driver Model is a specific architecture model that differs from the general Windows driver architecture. This driver is installed through Windows and will run continuously to support your sound card. If the process is terminated, your sound will not work properly. Based in Norwood, Massachussetts, Analog Devices creates digital signal processing integrated circuits for a wide variety of devices.

SMWDM stands for SoundMAX Windows Driver Model Digital Audio

Smwdm.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 smwdm.sys is a Windows system file or if it belongs to an application that you can trust.

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

Smwdm.sys file information

The process known as SoundMAX Integrated Digital Audio belongs to software SoundMAX Digital Audio Driver or smwdm by Analog Devices (

Description: Smwdm.sys is not essential for the Windows OS and causes relatively few problems. Smwdm.sys is located in the C:\Windows\System32\drivers folder. Known file sizes on Windows 10/8/7/XP are 260,224 bytes (23% of all occurrences), 260,352 bytes and 9 more variants. 
The driver can be started or stopped from Services in the Control Panel or by other programs. The program has no visible window. There is no detailed description of this service. Smwdm.sys is not a Windows system file. The file is a trustworthy file from Microsoft. smwdm.sys appears to be a compressed file. Therefore the technical security rating is 17% dangerous; however you should also read the user reviews.

Recommended: Identify smwdm.sys related errors

Important: Some malware disguises itself as smwdm.sys, particularly when not located in the C:\Windows\System32\drivers folder. Therefore, you should check the smwdm.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

its is a driver for a audio card, from soundmax
it sucks and is a bad virus
its a drive for soundmax souncard, in my case, integrated into my A7V880
  Chris Merriman   (further information)
audio card driver
It is a driver for the audio card. If you delete it, you will not get any sound. I tried and that is what happened. I reloaded the sound files as new, and had the same problem. It is coming up as an error when trying to run WINDVD7 Platinum on my laptop. Neither Intervideo nor myself have been able to resolve the problem.
It's a driver file
Extremely vital if you want your computer's sound to work. Not a virus at all.
  UW-Madison computer repair  
It has always given me problems, in that it would just stop working with no warning. I was always able to get it going again by using the "update driver" function in Windows 98Se's System Device manager. I just upgraded it to a slightly newer version which seems to be working well, Without it, my SoundMAX audio card simply doesn't work..
  Claudia Eisemann  
driver file for soundmax
Soundcard driver
  Vaaip   (further information)
Driver for the SoundMAX onboard sound card
  Spinal   (further information)
It is a driver , but windows dont like him
i want to know where i can get an update for this driver
I need this file. For Sound
it caused a blue screen for me, wondering why
It is a driver for some ntel mother card with integrated sound
ADI/Soundmax onboard audio chipset driver
this it is one of the improtant file for running soundmax.When u remove this file then the sound card stops working .This problem can be solved.Go u search for files and folders .Type this file name smwdm.sys .When u identify the file either copy the file to desktop or identify the location .Browse
provided by sony, the size of this version is 543360
This is a file always requested by the system before soundMAX Audio device can function. Since this file could contain some dangerous virus,the it will better to be removed.
It is used for sound for sure my friend needs this file to install and new driver. Doesnt have it though
  Digital Storm  
If you are having trouble with m2n-sli sound drivers, go to bios and enable HD audio. I thought the drivers were bad, saying smwdm.sys was missing.
I keep getting the Blue Screen of Death with this file named.
I noticed cmdagent.exe, or COMODO Internet Security's Firewall helper program accessing the file. It did cause a STOP error with the parameters "STOP 0x00000001 (0x0000000C, 0x00000002, 0x00000000, 0xF6D32424) I have had this file on my computer for years, and this is the first time i got a STOP error from it.
its is a driver for a netwerk audio card
Its a ball throwing between M$ and Lenovo in my case, but never I can touch it
Very little,known as far as I am concerned. I just can't use my DVD's and I have tried 3 different CD/DVD recorders none of them work all are external m
  George T  
it occur while installing sound drivers
it's a driver for soundmax audio card or chip on board. if an error appears (blue screen) you only have to uninstall the drivers for soundmax in devices. then start up windows again and let windows search the drivers and install them automatically. then there is no problem anymore with smwdm.sys.
  Rob Monteiro  
This causes error 0x0000050 BSOD on my AMD sempron. Uninstalling without removing the driver from Device manager and restarting the Pc fixed the issue.

Rating chart

Summary: Average user rating of smwdm.sys: based on 37 votes with 30 user comments. 26 users think smwdm.sys is essential for Windows or an installed application. 5 users think it's probably harmless. 3 users think it's neither essential nor dangerous. 2 users suspect danger. One user thinks smwdm.sys is dangerous and recommends removing it.

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Best practices for resolving smwdm issues

A clean and tidy computer is the key requirement for avoiding problems with smwdm. 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 smwdm.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

smwdm.sys [all]