Fix KBDBU.DLL Errors

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

KBDBU.DLL file Bulgarian (Typewriter) Keyboard Layout. 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 KBDBU.DLL related errors on your device. You can also download KBDBU.DLL file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, 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 7, Windows Vista, Windows Vista, Windows XP

File info

General information
Filename KBDBU.DLL
File extension DLL
Description Bulgarian (Typewriter) Keyboard Layout
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 Neutral

There are various types of errors related to KBDBU.DLL file. KBDBU.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 KBDBU.DLL file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to KBDBU.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 KBDBU.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.

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

The last solution is to manually download and replace KBDBU.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 KBDBU.DLL file.

Go to the folder where the file should be located and paste the downloaded file. Below is the list of KBDBU.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 7: C:\Windows\System32\
  • Windows Vista: ---
  • Windows Vista: ---
  • Windows XP: ---

If the steps did not solve your KBDBU.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 KBDBU.DLL
System Windows 10
File size 6144 bytes
Date 2017-03-18
File details
MD5 3d111d60658e1ac6e6aa5e2aa0788678
SHA1 a5a4691f7822c8ca7adbf54dc1cb40b64c7b162a
SHA256 bc3f0eba9ce21484fff0dbd232e3459f37127880e6fcda0c19cf459b13d03e14
CRC32 60a80274
Example file location C:\Windows\System32\
Filename KBDBU.DLL
System Windows 8.1
File size 6144 bytes
Date 2013-08-22
File details
MD5 8b7be397c5c4b7926f01250a2341c624
SHA1 99e3bfb3e9fd618290c58dfbd09326c2ed755df0
SHA256 d4f4aad9ef2c847053433bfc49cbae76e3bbebcd1d1e449993492d6d8f4d900f
CRC32 2acfbe11
Example file location C:\Windows\System32\
Filename KBDBU.DLL
System Windows 8
File size 6144 bytes
Date 2012-07-26
File details
MD5 f1471fa95b6fb1b2de8ef7d69c99f4f4
SHA1 3b91edde1e91f0339aa05f0f58dd3a256a209712
SHA256 c0c65455f912c62bd4763ae09d237017511ee08a13bf2c85380651b3696ac24f
CRC32 55e8f5a0
Example file location 1: C:\Windows\System32\
Filename KBDBU.DLL
System Windows 7
File size 7168 bytes
Date 2009-07-14
File details
MD5 22996aeebef220fc7ba632c7d8b5debf
SHA1 c63c61d3dca0d3d203c4a7b484325030b11f6568
SHA256 cde92bfa1286aade93beea3457b4db2eb3dbb17bda78ce34e52fda9f69c17c46
CRC32 211a44f4
Example file location C:\Windows\System32\
Filename KBDBU.DLL
System Windows 7
File size 6656 bytes
Date -0001-11-30
File details
MD5 f5534e7dcbc6457ac7ad03f31543fde3
SHA1 556b1841cfb0b55a1332f01b3972c090272f6d82
SHA256 4e35fe5b5ad40f25a331c88bf9f238d2f76ec455242dcb2107bca43b70d121d3
CRC32 1a8cb0f9
Example file location C:\Windows\System32\
Filename KBDBU.DLL
System Windows Vista
File size 7168 bytes
Date 2006-11-02
File details
MD5 26b0d3e87c4677601a8c3fb109de0063
SHA1 7069963d34296a38dce65843d6168dce1debc9e8
SHA256 a05426fa328f9b5e8ed79ff7cf40043eabbf999d9bfc461604bb6a7c08f4abe2
CRC32 d5984dd7
Example file location ---
Filename KBDBU.DLL
System Windows Vista
File size 6656 bytes
Date -0001-11-30
File details
MD5 c11f3d2ec6ab4c521f37060441ba94cf
SHA1 dfb7dc7de7cbd217a26640cc2a09981520226115
SHA256 427002c2a39358c1f611fff0fb9bc9d5c7dbd60dc32539a941a4a45b85a466c8
CRC32 b3c79414
Example file location ---
Filename KBDBU.DLL
System Windows XP
File size 5632 bytes
Date 2008-04-14
File details
MD5 1df6e4758611e1328567bfe4d1b28e27
SHA1 6999d3b1ce2ed29bb3bc121bff2b1fa6e033b8ba
SHA256 cd3a928edf52915d8c994c87a8ac5a92d0c5e7f5a8393c05f27ada820c3c10a7
CRC32 446ddea1
Example file location ---