Troubleshoot bthserv.dll Errors and Download File

Sometimes Windows system displays error messages regarding corrupted or missing bthserv.dll files. Situations like that can occur, for example, during a software installation process. Each software program requires certain resources, libraries, and source data to work properly. Corrupted or nonexistent bthserv.dll file can therefore effect in failed execution of the started process.

bthserv.dll file Bluetooth Support Service. The file was developed by for use with software. Here you will find detailed information about the file and instructions how to proceed in the event of bthserv.dll related errors on your device. You can also download bthserv.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

For Windows Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP

File info

General information
Filename bthserv.dll
File extension DLL
Description Bluetooth Support Service
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
MIME type application/octet-stream
File type Executable application
System Windows NT 32-bit
Copyrights © Microsoft Corporation. All rights reserved.
Character set Unicode
Language cod English (U.S.)

There are various types of errors related to bthserv.dll file. bthserv.dll file may be located in wrong file directory on your device, may not be present in the system, or may be infected with malicious software and therefore not work correctly. Below is a list of most common error messages related to bthserv.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

  • bthserv.dll is corrupted
  • bthserv.dll cannot be located
  • Runtime Error - bthserv.dll
  • bthserv.dll file error
  • bthserv.dll file cannot be loaded. Module was not found
  • cannot register bthserv.dll file:
  • bthserv.dll file could not be loaded
  • bthserv.dll file doesn't exist



Application could not be started because bthserv.dll file is missing. Reinstall the application to solve the problem.


Problems related to bthserv.dll can be addressed in various ways. Some methods are meant only for advanced users. If you don't have confidence in your skills, we suggest consulting a specialist. Fixing bthserv.dll file errors should be approached with utmost caution for any mistakes can result in unstable or unproperly working system. If you have the necassary skills, please proceed.

bthserv.dll file errors can be caused by various factors, so its is beneficial to try to fix them using various methods.

Step 1: Scan your computer for any malicious software

Virus Scan

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with bthserv.dll file or any other Windows system files should be scanning the system for malicious software using an antivirus tool.

If by any chance you don't have any antivirus software installed on your system yet, you should do it immediately. Unprotected system is not only a source of file errors, but, more importantly, makes your system vulnerable to many dangers. If you don't know which antivirus tool to choose, consult this Wikipedia article – comparison of antivirus software.

Step 2: Update your system and drivers.

Windows Update

Installing relevant Microsoft Windows patches and updates may solve your problems related to bthserv.dll file. Use dedicated Windows tool to perform the update.

  1. Go to the Windows "Start" menu
  2. Type "Windows Update" in the search field
  3. Choose the appropriate software program (name may vary depending on your system version)
  4. Check if your system is up to date. If any unapplied updates are listed, install them immediately.
  5. After the update has been done,restart your computer in order to complete the process.

Beside updating the system, it is recommended that you install latest device drivers, as drivers can influence proper working of bthserv.dll or other system files. In order to do so, go to your computer or device producer's website where you will find information regarding latest driver updates.

Step 3: Use System File Checker (SFC) tool

System File Checker

System File Checker is a Microsoft Windows tool. As the name suggests, the tool is used for identyfing and addressing system file related errors, including those related to bthserv.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the bthserv.dll file with properly working version. To use the tool:

  1. Go to the Windows "Start" menu
  2. Type "cmd" in the search field
  3. Locate "Command Prompt" result – don't run it yet:
  4. Click the right mouse button and select "Run as Administrator" option
  5. Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Windows Recovery

Another approach is to restore system to previous state, before the bthserv.dll file error occured. In order to restore your system, follow the instructions below

  1. Go to the Windows "Start" menu
  2. Type "System Restore" in the search field
  3. Start the system restore tool – it's name may differ depending on version of the system
  4. The application will guide you through the process – read the messages carefully
  5. After the process has finished, restart your computer.

If all the above-mentioned methods failed and the bthserv.dll file problem has not been resolved, proceed to the next step. Remember that the following steps are intended only for advanced users.

Download and replace bthserv.dll file

The last solution is to manually download and replace bthserv.dll file in appropriate folder on the disk. Select file version compatible with your operating system and click the "Download" button. Next, go to your web browser's "Downloaded" folder and copy the downloaded bthserv.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of bthserv.dll file example directory paths.

  • Windows 10: C:\Windows\System32\
  • Windows 8.1: C:\Windows\System32\
  • Windows 8: 1: C:\Windows\System32\
  • Windows 7: C:\Windows\System32\
  • Windows Vista: C:\Windows\System32\
  • Windows XP: ---

If the steps did not solve your bthserv.dll file problem, you should consult a professional. A probability exists that the error(s) might be device-related and therefore should be resolved at the hardware level. A fresh operating system installation might be necessary – a faulty system installation process can result in data loss.

File versions list

Filename bthserv.dll
System Windows 10
File size 117248 bytes
Date 2017-03-18
File details
MD5 95f401dec06fbec2fcaf16e3cb785bb3
SHA1 e8661bf25997049b4526407e4723765c00fc1656
SHA256 a20566038443170811fc87b9005c785c19601dde1d9da4bcd8d3247c87af2518
CRC32 4b04282c
Example file location C:\Windows\System32\
Filename bthserv.dll
System Windows 8.1
File size 73216 bytes
Date 2014-11-21
File details
MD5 f8869ba61dffe0f4ff408368898a18c5
SHA1 d8d5de2afcb4f5facc6f658ea799f7548a9a20bc
SHA256 8763d7f4c36b097ed993c78d831689093c15271989c0895dbef7fb80feb566ba
CRC32 ff586f08
Example file location C:\Windows\System32\
Filename bthserv.dll
System Windows 8
File size 69632 bytes
Date 2012-07-26
File details
MD5 171af9795cabec4985d45640d3a5f8f0
SHA1 e271cdfb008395d6a7764df397c60bcd3067e27f
SHA256 d50fd89fdc392720fbb0fe23341eae95e446fc98d5487b7ee0edc2533ca0d5a9
CRC32 c8bdb946
Example file location 1: C:\Windows\System32\
Filename bthserv.dll
System Windows 7
File size 83968 bytes
Date 2009-07-14
File details
MD5 95f9c2976059462cbbf227f7aab10de9
SHA1 15085f4aa937ac70132b78bf52ff36e4c41c55ac
SHA256 2797ae919ff7606b070fb039cecdb0707cd2131dcac09c5df14f443d881c9f34
CRC32 08d3fc48
Example file location C:\Windows\System32\
Filename bthserv.dll
System Windows Vista
File size 53760 bytes
Date 2009-04-11
File details
MD5 22e65ffd640f16968f855f5b3528d366
SHA1 e1228ce66910d54f18d1310f14efec0f935204a3
SHA256 6ef7fc170e2533bd7bff0125391757e27e3d5f05ede1a986e4295cdcd2d9b197
CRC32 19b2334f
Example file location C:\Windows\System32\
Filename bthserv.dll
System Windows XP
File size 30208 bytes
Date 2008-04-14
File details
MD5 f4c43c66471b87996d95db7a3a664a37
SHA1 6d498656703047458bb8f6569990ab77b23e9278
SHA256 c7324dbf75376578ec254fd64e2564fef9a35b58dfe1095389f769f37ea68b21
CRC32 73641956
Example file location ---