bthci.dll - Repair Issues and Download

Sometimes Windows system displays error messages regarding corrupted or missing bthci.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 bthci.dll file can therefore effect in failed execution of the started process.

bthci.dll file Bluetooth Class Installer. 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 bthci.dll related errors on your device. You can also download bthci.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 bthci.dll
File extension DLL
Description Bluetooth Class Installer
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
MIME type application/octet-stream
File type Dynamic link library
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 bthci.dll file. bthci.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 bthci.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to bthci.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 bthci.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.

bthci.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 bthci.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 bthci.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 bthci.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 bthci.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the bthci.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 bthci.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 bthci.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 bthci.dll file

The last solution is to manually download and replace bthci.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 bthci.dll file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of bthci.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 bthci.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 bthci.dll
System Windows 10
File size 88576 bytes
Date 2017-03-18
File details
MD5 2bfae82095dc9a6dddf0c0da1e52ca19
SHA1 36b226de0a9c763fe4441c3c1d71a3c4971522f5
SHA256 7b4f995fac737691867f085999380ae81e09f56f566b4d594979dd0b912782b6
CRC32 738f9242
Example file location C:\Windows\System32\
Filename bthci.dll
System Windows 8.1
File size 86528 bytes
Date 2014-11-21
File details
MD5 840fc3fd98ad97a84da4c6e1225fbc12
SHA1 6bf1b4ec96fb5906bbe97bc2a7189b573629ffb4
SHA256 4fe6baedf452a4ea395d7dbba07be4dbd5cdc3e05a08c1d9fd97e4182303b139
CRC32 a139cacc
Example file location C:\Windows\System32\
Filename bthci.dll
System Windows 8
File size 37888 bytes
Date 2012-07-26
File details
MD5 af8fbd0a2b3615802b225b403ee6d3c3
SHA1 387a9bd7781d16c423cc16ec169c1cd6a0833b09
SHA256 1763b3db0a026fa262c3d20d3ae7a3709e72a8f80acf0b79de2dcec642b52e66
CRC32 35d2fa79
Example file location 1: C:\Windows\System32\
Filename bthci.dll
System Windows 7
File size 42496 bytes
Date 2009-07-14
File details
MD5 31df8b79ef2b1985ffbb113d7a03b0aa
SHA1 72ae05a1061ece84d2c64df73fa87b46a54c9c16
SHA256 c6b526d22460e86be0763524af742606bc0108f7dc0aace3fa7ccfece3d45d78
CRC32 0ae0b1c1
Example file location C:\Windows\System32\
Filename bthci.dll
System Windows Vista
File size 46592 bytes
Date 2009-04-11
File details
MD5 47f2a54950eedd33a9c3889cf3b1b436
SHA1 bbb52ed7650ec1ff49244c00aeb7615f64afdb62
SHA256 d767416b04289515ccc37d2c9bdf8adaf674c5efd2296a122b449dfc59c4e008
CRC32 494e1281
Example file location C:\Windows\System32\
Filename bthci.dll
System Windows XP
File size 20992 bytes
Date 2008-04-14
File details
MD5 034a05e2d77e92486bedc89a4c177ba9
SHA1 f00b66d906d95464a16ac89673050644808e6c2f
SHA256 bf95f5e57e77d2773495d772ee3078c404e917cc7e8a83e3eb771b6567568b06
CRC32 112b68e3
Example file location ---