What is runSW.exe?

The .exe extension on a filename indicates an executable file. Executable files may, in some cases, harm your computer. Therefore, please read below to decide for yourself whether the runSW.exe on your computer is a Trojan that you should remove, or whether it is a file belonging to the Windows operating system or to a trusted application.

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RunSW.exe file information

Windows Task Manager with runSW
RunSW.exe process in Windows Task Manager

The process known as RunSwUSB belongs to software runSW Application by Realtek Semiconductor (

Description: RunSW.exe is not essential for Windows and will often cause problems. The file runSW.exe is located in the C:\Windows folder. Known file sizes on Windows 10/8/7/XP are 36,864 bytes (76% of all occurrences), 44,104 bytes, 48,856 bytes or 44,760 bytes. 
There is no file information. The program is not visible. The runSW.exe file is not a Windows system file. RunSW.exe is located in the Windows folder, but it is not a Windows core file. RunSW.exe is able to monitor applications. Therefore the technical security rating is 52% dangerous, however you should also read the user reviews.

Recommended: Identify runSW.exe related errors

Important: Some malware camouflages itself as runSW.exe. Therefore, you should check the runSW.exe 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

I recently built my own computer: Intel I7, 16 GB RAM, Geforce GTX 770, Windows 7 with 256 SSD (not really worth the extra $) For a while now, my ram has been filling up to like 12-14GB. I assumed it was the programs I was running, so I closed the taxers and it only dropped by 2-3.5 GB. I checked "Show processes from all users" in Task Manager and saw runsw being the fourth biggest consumer at about 1GB, so I decided to stop the service and disable it. As soon as I did that, my RAM usage dropped from 12GB to 4GB. This program seems to be licensed to realtek and I can only assume it has something to do with nonessential audio things; either way, it uses a lot of unnecessary RAM and can be disabled without trouble as far as I can tell.
RunSWUSB leaks virtual memory and will crash a system
I came across this remark "You should keep RunSwUSB if you need to use this software to Switch USB2.0/USB3.0 for WinXP SP2+ ~ Win8" And that made sense. I installed a USB WiFi adapter with USB3 connector. The device details page in device manager has a field for this force USB2 or USB3 and Auto.
  Eric-Jan H te A  
It works in the background and consume memory and shutdown process goes very slowly. I was disabled that service in comp. management.
  John Smith, Belgrade  

Summary: Average user rating of runSW.exe: based on 4 votes with 4 user comments. 2 users think it's probably harmless. One user thinks it's neither essential nor dangerous. One user suspects danger.

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Best practices for resolving runSW issues

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

runSW.exe [all]