What is pnusbvirtualhubwssrv.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 pnusbvirtualhubwssrv.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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Pnusbvirtualhubwssrv.exe file information

Windows Task Manager with pnusbvirtualhubwssrv
Pnusbvirtualhubwssrv.exe process in Windows Task Manager

The process known as Virtual USB Hub Main module belongs to software Quest vWorkspace or Quest USB Hub Client Service by Quest Software (

Description: Pnusbvirtualhubwssrv.exe is not essential for the Windows OS and causes relatively few problems. Pnusbvirtualhubwssrv.exe is located in the C:\Windows\System32 folder. Known file sizes on Windows 10/8/7/XP are 465,040 bytes (50% of all occurrences) or 592,016 bytes. 
The program has no visible window. Pnusbvirtualhubwssrv.exe is certified by a trustworthy company. The process listens for or sends data on open ports to a LAN or the Internet. It is not a Windows core file. Pnusbvirtualhubwssrv.exe is able to monitor applications. Therefore the technical security rating is 54% dangerous.

Uninstalling this variant: You have the option to do the following:
  1) uninstall the software Quest Software using the Uninstall a Program function of Windows Control Panel (Windows: Start, Settings, Control Panel, Uninstall a Program)
  2) look for help on the website.

Recommended: Identify pnusbvirtualhubwssrv.exe related errors

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


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Best practices for resolving pnusbvirtualhubwssrv issues

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

pnusbvirtualhubwssrv.exe [all]