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winusbcoinstaller2.dll - Analyze and How to Fix Errors

★★★★★ Verified File (27.08.2026)

Description


Creation date: 22.04.2009 06:14:51
File version: 6.1.7100.0
Antivirus scan: ✅ OK
Category: Runtime
File size: 954.2 kb.
Architecture: 64-bit (x64)
✅ 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 winusbcoinstaller2.dll

Publisher: Microsoft Corporation
Issuer: Microsoft Windows Verification Intermediate PCA
Encryption algorithm: SHA1
Time stamp: Apr 22 13:19:56 2009 GMT

A DLL (Dynamic Link Library) file, such as winusbcoinstaller2.dll, is a reusable code library that Windows and other applications can call upon to perform specific tasks. These files help in optimizing system resources by reducing redundancy and allowing different programs to share the same functionality.

MD5: 92e60ec65975c850e242ed4488d35323
SHA-1: 37b3ecb4b0c4114412b699c1187177d87b90642f
SHA-256: 1fc532b7acba1b6044184d28391d4bd0fb678624fdef8b15c8f3efed81f6c945

Where it is used

The winusbcoinstaller2.dll file is related to USB device support. It likely interacts with USB devices, particularly those from ACTIA (a company known for automotive electronics). This DLL might be part of a driver package or an update mechanism that ensures proper communication between the USB devices and the Windows operating system.

Errors related to winusbcoinstaller2.dll

You may encounter errors like "winusbcoinstaller2.dll not found," "missing winusbcoinstaller2.dll," or "error loading winusbcoinstaller2.dll." These can cause issues with USB devices, system instability, and application crashes. For example:

  • "winusbcoinstaller2.dll is missing" – This error occurs when the DLL file is absent from your system.
  • "Error loading winusbcoinstaller2.dll" – The operating system fails to load this specific DLL file, which can disrupt certain functionalities related to USB devices.

File security

The file characteristics suggest that winusbcoinstaller2.dll is a legitimate system file. However, it's always a good practice to verify the source and integrity of any DLL files. If you encounter errors related to this file, ensure that your Windows installation is up-to-date and consider using trusted sources for replacements.

winusbcoinstaller2.dll was not found
The code execution cannot proceed because winusbcoinstaller2.dll was not found
Failed to load winusbcoinstaller2.dll
The procedure entry point ... could not be located in winusbcoinstaller2.dll

1.
2a. 👉 Try to copy winusbcoinstaller2.dll C:\Program Files\Your program\
2b. Also try to copy to bin, lib folders.
2c. Try to copy winusbcoinstaller2.dll C:\Program Files (x86)\Your program\
👉 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: Sometimes, reinstalling software or drivers that rely on this DLL can resolve issues. Follow the manufacturer’s instructions for reinstallation.
  2. Update Windows: Keeping your operating system updated helps ensure compatibility with all necessary files and prevents issues caused by outdated systems.
  3. Manually replace winusbcoinstaller2.dll: You can download a trusted copy of this DLL from reputable sources. Navigate to the section below for instructions on how to proceed carefully. Be cautious when replacing system files, as incorrect changes can cause further issues.

FAQ

Q: Is winusbcoinstaller2.dll safe?

A: Generally, yes. It is a legitimate system file from ACTIA. However, if you encounter errors or suspect malware, run a virus scan and verify the source of any replacements.

Conclusion

To ensure smooth operation with USB devices on Windows, keeping your system up-to-date and addressing issues promptly can prevent many problems. If you find that winusbcoinstaller2.dll is missing or causing errors, use the steps above to resolve them.


File Description: winusbcoinstaller2.dll

winusbcoinstaller2.dll is a co-installer dynamic link library file developed by Microsoft Corporation. It is a critical component of the Windows Driver Framework (WDF) and is specifically used to assist in the installation of USB devices that utilize the Microsoft WinUSB (Windows USB) architecture. It helps register the device and configure the necessary registry settings during driver installation.

Standard File Location

The file is natively included with the Windows operating system and is typically located in the following system directories:

  • C:\Windows\System32\ (on 32-bit systems, or for 64-bit drivers on 64-bit systems)
  • C:\Windows\SysWOW64\ (for 32-bit compatibility on 64-bit systems)
  • C:\Windows\System32\DriverStore\FileRepository\ (within specific driver backup folders)

How to Fix winusbcoinstaller2.dll Errors Without Downloading

Errors related to this file usually occur when it is missing, corrupted, or when a USB driver installation fails. You do not need to download this file from third-party websites (which is often unsafe). Instead, use the built-in Windows tools below to fix it.

1. Run the System File Checker (SFC)

Windows has a built-in tool that scans your system for corrupted or missing system files and restores them automatically from a local cached copy.

  1. Press the Windows Key, type cmd.
  2. Right-click Command Prompt and select Run as administrator.
  3. Type the following command and press Enter:
    sfc /scannow
  4. Wait for the scan to reach 100%. Restart your computer if prompted.

2. Run the DISM Tool

If the SFC tool cannot fix the file, the Deployment Image Servicing and Management (DISM) tool will repair the underlying Windows system image using Windows Update components.

  1. Open Command Prompt as an administrator.
  2. Type the following command and press Enter:
    DISM /Online /Cleanup-Image /RestoreHealth
  3. After the process finishes, restart your PC and run the sfc /scannow command one more time.

3. Reinstall or Update the Problematic USB Driver

If the error occurs when connecting a specific device (like a phone, tablet, or external drive), the driver installation is likely corrupted.

  1. Right-click the Start Menu and select Device Manager.
  2. Look for any item with a yellow exclamation mark ??, or expand Universal Serial Bus devices.
  3. Right-click the problematic device and select Uninstall device.
  4. Disconnect the device from your computer.
  5. Restart your PC, then plug the device back in. Windows will automatically rebuild the driver using its native winusb files.

4. Install Pending Windows Updates

Since this file is a core component of the Windows OS, Microsoft frequently updates it through official security and system patches.

  1. Press Windows Key + I to open Settings.
  2. Go to Update & Security (or Windows Update on Windows 11).
  3. Click Check for updates.
  4. Download and install all available updates, then restart your computer.

?? Other versions:
️ winusbcoinstaller2.dll 6.1.7600.16385 32-bit (x86)
Microsoft Corporation