nusb3mon.exe – What it is, Uses, & Errors

  • Amar 
  • OS

nusb3mon.exe process is used for USB 3.0 data transfer, but it may use a high CPU or may show an application error if the file damaged. It is a totally safe file and should not be removed from the Windows system, otherwise, a portable drive might not work proplery.

What is nusb3mon.exe ?

If you are using a portable drive or pen drive that has USB 3.0 for transferring the data at high speed then you may notice that nusb3mon.exe is running in the task manager. The nusb3mon.exe process is used in external USB 3.0 hard drives. This process is required for speeding up the exchange of information/data through the USB 3.0 interface. Therefore disabling the nusb3mon.exe can slow the speed of USB transfers.

File size & Location

Normally the nusb3mon.exe is located in the subfolder of C:\ Program Files (x86). To be more detailed I have listed down some of its important properties.

  • File Name : nusb3mon.exe
  • File Description : USB 3.0 Monitor
  • File Location : C:\Program Files (x86)\NEC Electronics\USB 3.0 Host Controller Driver\Application\ or C:\Program Files (x86)\Renesas Electronics\USB 3.0 Host Controller Driver\Application\
  • The file size ranges between 106 KB and 114 KB.
  • Publisher: NEC Electronics Corporation or Renesas Electronics

Note: The nusb3mon.exe is not a Windows essential file therefore the file comes with the software which you have installed in your computer.

Is nusb3mon.exe safe or a malware/virus ?

Well, generally nusb3mon.exe is safe and hence it is probably not going to represent any damage to your framework. However, you must check for the location of nusb3mon.exe in your computer through Task Manager.

To access Task Manager press the combination of Ctrl + Shift + Esc and then find nusb3mon.exe process and then check its location. In case the location is C:\Program Files (x86)\NEC Electronics\USB 3.0 Host Controller Driver\Application\ then it is safe but in case the location is somewhere else then nusb3mon.exe can be a malware file.

Common nusb3mon.exe error messages

If the nusb3mon.exe is corrupted or say if it is affected by any viruses or malware then you may encounter some error notifications. Some of these error messages are as follows:

  • nusb3mon.exe is not a valid Win32 application.
  • nusb3mon.exe has failed.
  • nusb3mon.exe is not responding.
  • nusb3mon.exe is missing.

Reasons for nusb3mon.exe error messages

In case you have downloaded it from an untrusted website or in case the nusb3mon.exe is corrupted, in both the situation you may end up receiving some of the irritating error notifications which I have discussed in the above section.

How to remove/uninstall nusb3mon.exe from the system?

After you are pretty sure that nusb3mon.exe is corrupted or in case you do not require it then you can try to uninstall/delete nusb3mon.exe from your system. Hence to delete it follow the steps one by one.

  1. Open the Control Panel
  2. Next, you will have to find the Programs section and further left-click on Uninstall a Program.

Uninstall a program

You will be seeing a list of all the software programs installed on your system.

  1. Now you need to find the Renes as Electronics USB or NEC Electronics USB
  2. Now right click on the program and then select Uninstall/Change

That’s it now just follow the onscreen instruction so as to remove the nusb3mon.exe file from your PC.

Final Word

Noa days, all majority of the laptop and desktop support USB 3.0 version port for high-speed data transfer and this  nusb3mon.exe file play an important role for the same. Do let me know if yo have any queries or doubt about this process.


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