How to Fix Atlibusbdfu.dll Not Found Error Message AtJnilsp?

Atlibusbdfu.dll is a Dynamic Link Library (DLL) that is an essential component of Atmel FLIP, a program designed for installing firmware on microcontrollers found in Arduino boards. This DLL file establishes the important communication bridge between the computer and the microcontroller via the Device Firmware Update (DFU).

It being corrupted leads to an atlibusbdfu.dll not found error message. If such an error occurs, there are a few solutions to consider.

1. Reinstall FLIP

An effective method to restore the atlibusbdfu.dll file is by reinstalling the Flip software. Given that the DLL file is a part of Atmel FLIP, reinstallation should restore it.

  1. Click on the Start Menu and type Add or remove programs.
  2. Press the Enter key to get to the settings.
  3. Then, locate Flip from the installed applications.
  4. Select the three dots and click Uninstall.
  5. Confirm by clicking Uninstall once more.
  6. Finally, redownload and install Flip to see if the issue is resolved.

2. Perform a Full System Scan

If you have no connection with FLIP software and the atlibusbdfu.dll file appears, malware might exist on your PC. It’s common for malware to mimic legitimate DLL files and run in the background. It is important to thoroughly scan your computer with a trusted antivirus program to eliminate any potential malware.

  1. Open the Start Menu and type Windows Security.
  2. Press Enter to open the Windows Security App.
  3. Select Virus & Threat Protection.
  4. Then, click on the Scan options and proceed to select Full Scan.
  5. Press Scan Now and wait for the scan to be completed.
  6. If atlibusbdfu.dll is a malware, it should no longer run in the task manager now.

If the above methods don’t work, the last method to consider is the System Restore utility. If you created a restore point before encountering this issue, you can use this to revert your Windows to a previous state. The DLL file should be restored, as you will be returning to a state before the error occurred.


Hamza Mohammad Anwar

Hamza Mohammad Anwar is an intermediate JavaScript web developer with a focus on developing high-performance applications using MERN technologies. His skill set includes expertise in ReactJS, MongoDB, Express NodeJS, and other related technologies. Hamza is also a Google IT Certified professional, which highlights his competence in IT support. As an avid problem-solver, he recreates errors on his computer to troubleshoot and find solutions to various technical issues.