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ftbusui.dll - Analyze and How to Fix Errors

β˜…β˜…β˜…β˜…β˜… Verified File (27.08.2026)

Description


Creation date: 05.07.2021 15:39:48
File version: 1.3.0.1
Antivirus scan: βœ… OK
Category: Utility
File size: 174.1 kb.
Architecture: 64-bit (x64)
βœ… This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.
How to determine your system architecture: Press keys Win+R , enter symbols wmic os get osarchitecture , press Enter.

Digital file signature ftbusui.dll

Publisher: Future Technology Devices International Ltd
Issuer: Symantec Class 3 Extended Validation Code Signing CA - G2
Encryption algorithm: SHA1
Time stamp: Jul 5 13:39:55 2021 GMT

The ftbusui.dll file is a Dynamic Link Library (DLL) that plays a crucial role in Windows. DLL files are reusable code libraries used by multiple programs to perform specific functions, ensuring efficient use of system resources.

MD5: 0a052950922776d90f00dfa691008e18
SHA-1: c7539bd255e2f2d72b6025633c064ef8d19fc8e1
SHA-256: f54738fec15b56ba92070746a07e9b783717d45fa1963c491e3c885ef5935d63

Where It Is Used

The ftbusui.dll file is associated with components or applications related to FTDI (Future Technology Devices International) USB-to-Serial bridge devices. This DLL provides essential functions for managing and interacting with these hardware components.

Errors Related to ftbusui.dll

Common issues that might arise due to the ftbusui.dll file include:

  • "ftbusui.dll not found" β€” The system cannot find this file.
  • "Missing ftbusui.dll" β€” Indicates a critical missing file required by your application.
  • "Error loading ftbusui.dll" β€” Problems in loading the DLL, which can cause applications to crash or fail to run properly.

File Security

The ftbusui.dll file has characteristics that indicate it is safe and reliable. It is a high-entropy virtual address, NX-compatible, and 64-bit architecture-specific. These attributes suggest that the DLL is secure and not likely to be malicious.

ftbusui.dll was not found
The code execution cannot proceed because ftbusui.dll was not found
Failed to load ftbusui.dll
The procedure entry point ... could not be located in ftbusui.dll

1.
2a. πŸ‘‰ Try to copy ftbusui.dll C:\Program Files\Your program\
2b. Also try to copy to bin, lib folders.
2c. Try to copy ftbusui.dll C:\Program Files (x86)\Your program\
πŸ‘‰ It is recommended to back up the files before replacement.
How do I switch to the current Windows directory?
- Press and hold the key "win" on the keyboard and press the key "r" , then write %windir% and press the key Enter.
How to switch to the directory Program Files (x86) ?
- Press Win+R then enter %ProgramFiles(x86)% and after press Enter.

How to Fix Errors

  1. Reinstall the Program: Reinstalling the program associated with ftbusui.dll can resolve issues. This ensures all files, including this DLL, are properly installed and up-to-date.
  2. Update Windows: Keeping your operating system updated is crucial for maintaining security and ensuring compatibility with hardware components like FTDI devices.
  3. Manually Replace ftbusui.dll: If you have a backup of the original DLL, you can replace it. Downloading from a trusted source or using a safe backup method is recommended.

FAQ

Is ftbusui.dll harmful? No, based on the file characteristics, this DLL appears to be safe and secure. However, always download from trusted sources.

How do I replace ftbusui.dll? Download a legitimate backup of the file from a reliable source or use system restore if you have previously backed up your files.

Conclusion

The ftbusui.dll file is an important part of managing FTDI devices in Windows. Understanding its role and how to handle errors can help ensure smooth operation of related software and hardware components.


File Description: ftbusui.dll

What is ftbusui.dll?

The ftbusui.dll file is a dynamic link library (DLL) associated with FTDI (Future Technology Devices International) drivers. It specifically handles the user interface (UI) components for FTDI USB-to-Serial bus converters.

Standard File Location

On a standard Windows system, this file is located in the driver store or system folders:

  • C:\Windows\System32\Drivers\
  • C:\Windows\System32\DriverStore\FileRepository\ (inside a specific FTDI driver folder)

How to Fix ftbusui.dll Errors Without Downloading

You do not need to download this file from risky third-party DLL websites. Instead, use these built-in Windows tools and official methods to fix the error.

1. Reinstall or Update FTDI Drivers via Device Manager

Since this file belongs to USB-to-Serial hardware, updating the driver will restore it.

  • Press Win + X and select Device Manager.
  • Expand the Universal Serial Bus controllers or Ports (COM & LPT) section.
  • Look for your FTDI device (e.g., USB Serial Converter).
  • Right-click the device and select Update driver.
  • Choose Search automatically for drivers.

2. Roll Back to a Previous Driver

If the error started after a recent Windows update, rolling back the driver can fix it.

  • Open Device Manager.
  • Right-click your FTDI device and select Properties.
  • Go to the Driver tab.
  • Click Roll Back Driver if the option is available.
  • Restart your computer.

3. Run System File Checker (SFC)

Windows has a built-in tool to repair corrupted or missing system files automatically.

  • Press the Win key, type cmd, right-click Command Prompt, and select Run as administrator.
  • Type the following command and press Enter:
    sfc /scannow
  • Wait for the verification to reach 100%, then restart your PC.

4. Use DISM to Repair the System Image

If SFC fails, use the Deployment Image Servicing and Management tool to restore healthy system files.

  • Open Command Prompt as an administrator.
  • Type the following command and press Enter:
    DISM /Online /Cleanup-Image /RestoreHealth
  • Once completed, run the sfc /scannow command one more time.

5. Disconnect and Reconnect the USB Device

Sometimes the driver fails to load properly due to a hardware glitch.

  • Unplug the USB-to-Serial device from your computer.
  • Restart your PC.
  • Plug the device into a different USB port (preferably a USB 2.0 port if you are using USB 3.0).
Other versions:
️ ftbusui.dll 1.3.0.1 32-bit (x86)
Future Technology Devices International Ltd