bluetoothdiagnosticutil.dll - Analyze and How to Fix Errors
★★★★☆ Verified File (27.08.2026)⚠️ Important Notice: Optimize your Bluetooth settings with our essential utility DLL. Fix issues quickly and easily. Manually replacing system libraries can brick future Windows updates or cause critical system failures.
| Architecture: | 32-bit (x86) | Compatible with 32 and 64-bit Windows |
| File version | 10.0.19041.4355 | |
| Antivirus scan | ✅ Clean | No viruses detected. |
| Digital signature | 🟡 Not signed | Signature missing. The file may have been modified. |
| Hash Integrity | ✅ MD5: Verified | In file hash protection exist and it is verified. |
| File size | 50 kb. | 51200 bytes. |
Hashes:
MD5: df438f2375f0c63f2b682d0ebe8f19a7 ✅SHA-1: 1ebc680001d557a66d360cc25b9c1476eacd02aa
SHA-256: 86a7d85a162eccdfead33b50edf720599ed2a1a8c51fca837f548776bc6dd464
SHA-512: bfb422355853558e367ee9b301999fae5e263bd0e629fcf26f63b0576b5b8af761914ba37824a173a4f90414bd928fc8f91f6c025b31ca71d1ec036b53943296
✅ This file is compatible with 32-bit Windows and can run on ✅ 64-bit Windows (via the WOW64 subsystem).
File Description: bluetoothdiagnosticutil.dll
bluetoothdiagnosticutil.dll is a legitimate Dynamic Link Library (DLL) file developed by Microsoft Corporation for the Windows operating system.
- Function: It contains essential code and data used by the Windows Bluetooth Diagnostic Utility to troubleshoot, detect, and resolve connectivity issues with Bluetooth devices.
- Standard File Location:
C:\Windows\System32\
How to Fix bluetoothdiagnosticutil.dll Errors Without Downloading
Errors related to this file (such as "Missing," "Not Found," or "Crash" errors) usually happen due to system corruption, registry issues, or failed Windows updates.
You do not need to download the DLL file from third-party websites, which are often unsafe. Use these built-in Windows tools to fix it:
1. Run System File Checker (SFC)
The SFC tool scans all protected system files and replaces corrupted ones with a fresh cached copy.
- Press
Windows Key + Xand select Terminal (Admin) or Command Prompt (Admin). - Type the following command and press Enter:
sfc /scannow - Wait for the scan to hit 100% and restart your computer.
2. Run DISM Tool
If SFC cannot fix the file, the Deployment Image Servicing and Management (DISM) tool will fetch healthy files from Windows Update servers.
- Open Command Prompt (Admin) again.
- Type this command and press Enter:
DISM /Online /Cleanup-Image /RestoreHealth - Restart your PC after the process completes.
3. Run the Built-In Bluetooth Troubleshooter
Windows can automatically repair the services that rely on this DLL.
- Open Windows Settings (
Windows Key + I). - Go to System > Troubleshoot > Other troubleshooters.
- Find Bluetooth and click Run.
4. Reinstall Bluetooth Drivers
Corrupt hardware drivers can cause the diagnostic utility to crash.
- Right-click the Start menu and choose Device Manager.
- Expand the Bluetooth section.
- Right-click your main Bluetooth adapter (e.g., Intel, Realtek, or Qualcomm) and select Uninstall device.
- Restart your PC. Windows will automatically reinstall the driver upon reboot.
📊 Diagnostics Tool: Verify Your bluetoothdiagnosticutil.dll File
Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.
Connected files:msvcp110 win.dll
├── msvcrt.dll
├── KERNEL32.dll
├── ole32.dll
├── api-ms-win-core-winrt-error-l1-1-0.dll
├── api-ms-win-core-winrt-error-l1-1-1.dll
├── api-ms-win-core-winrt-l1-1-0.dll
├── api-ms-win-core-winrt-string-l1-1-0.dll
└──
BluetoothDiagnosticUtil.dllOther versions:
️ bluetoothdiagnosticutil.dll 10.0.19041.746 64-bit (x64) | ️ bluetoothdiagnosticutil.dll other