bthmigplugin.dll - Analyze and How to Fix Errors

★★★★☆ Verified File (27.08.2026) The file was obtained from the pack Windows 7

⚠️ Important Notice: Discover details about bthmigplugin.dll, its function in Windows systems, and how to troubleshoot related issues. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	64-bit (x64)	Compatible with only 64-bit Windows
Creation date	17.04.2025 06:07:06
File version	6.1.7601.27717
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	84 kb.	86016 bytes.

Hashes:

MD5: 06f9287cd619cd2c82a7d852a0fc33a3 ✅
SHA-1: ee79dab74f660f78380789f26fab0b5a947ec9d5
SHA-256: f7feb692af788cffc3818b61b11f0b1c2c54c5af14a394303ee4f16646a5c666
SHA-512: 490c6f7bfc34b85cabde8051e66222b71073f17750361aec99f633a9bd99cfc76b82369d8d31cc387586e6286f4c944058d28baa89c467d03842b62c8b881350

✅ This file is compatible with 64-bit Windows and ❌ will not work on a 32-bit operating system.

File Description: bthmigplugin.dll

The file bthmigplugin.dll is a legitimate Microsoft Windows system component.

Full Name: Bluetooth Migration Plugin
Function: It handles the migration of Bluetooth settings, paired devices, and configurations during Windows operating system upgrades or major feature updates.
Developer: Microsoft Corporation
File Type: Dynamic Link Library (DLL)

Standard File Location

In a healthy Windows installation, this file must reside exclusively in the system directories.

Primary Location: C:\Windows\System32\bthmigplugin.dll
64-bit systems (32-bit version): C:\Windows\SysWOW64\bthmigplugin.dll
Backup Location: C:\Windows\WinSxS\Text String Varying By Version...

Safety Warning: If this file is found in temporary folders, user profiles, or the desktop, it is likely malware disguised as a system file.

How to Fix bthmigplugin.dll Errors Without Downloading

Errors related to this file usually happen due to registry corruption, registry remnants after a Windows upgrade, or file corruption. You can fix this safely using built-in Windows tools without downloading files from risky third-party websites.

Method 1: Run SFC and DISM Tools

Windows has built-in repair tools that check for missing or corrupted system files and replace them with official cached copies.

Press Windows Key + X and select Terminal (Admin) or Command Prompt (Admin).
Type the following command to repair the local system image and press Enter:
```
DISM.exe /Online /Cleanup-image /Restorehealth
```
Wait for the process to reach 100% (it may take several minutes).
Next, type this command to scan and fix the actual system files, then press Enter:
```
sfc /scannow
```
Restart your computer after the scan finishes.

Method 2: Re-register the DLL file

If the file exists but Windows cannot read it correctly, re-registering it in the Windows Registry can resolve the issue.

Open Command Prompt (Admin).
Type the following command and press Enter:
```
regsvr32 /u bthmigplugin.dll
```
Type the following command to re-register it and press Enter:
```
regsvr32 bthmigplugin.dll
```
Restart your PC.

Method 3: Clean Up Bluetooth Registry Keys

This error frequently pops up after upgrading Windows because an old setup key points to a migration plugin that is no longer needed by the current OS version.

Press Windows Key + R, type regedit, and press Enter to open the Registry Editor.
Navigate to the following path: HKEY LOCAL MACHINE\System\Setup
Look for subkeys related to upgrades, specifically: HKEY LOCAL MACHINE\System\Setup\Upgrade\UpgradeMigrationPlugins
Search for any key or value referencing bthmigplugin.dll.
Right-click the specific entry referencing the file and select Delete.
Restart your computer.

Note: Always back up your registry (File -> Export) before making any deletions.

Method 4: Reinstall Bluetooth Drivers

If the error occurs when you turn on Bluetooth, resetting the device drivers will trigger Windows to rebuild the file stack.

Right-click the Start button and select Device Manager.
Expand the Bluetooth category.
Right-click your primary Bluetooth adapter (e.g., Intel, Realtek, or Qualcomm).
Click Uninstall device.
Check the box that says "Attempt to remove the driver for this device" if visible, and click Uninstall.
Restart your computer. Windows will automatically reinstall the generic driver on boot.

📊 Diagnostics Tool: Verify Your `bthmigplugin.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:
msvcrt.dll
├── ntdll.dll
├── KERNEL32.dll
├── ADVAPI32.dll
├── USER32.dll
├── ole32.dll
├── OLEAUT32.dll
├── SHLWAPI.dll
├── SHELL32.dll
└── SETUPAPI.dll
Other versions:
️ bthmigplugin.dll 10.0.19041.1 32-bit (x86) | ️ bthmigplugin.dll other