adtschema.dll - Repair Issues and Download

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

adtschema.dll file Security Audit Schema DLL. 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 adtschema.dll related errors on your device. You can also download adtschema.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7, Windows Vista, Windows Vista 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

File info

General information
Filename adtschema.dll
File extension DLL
Description Security Audit Schema DLL
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 adtschema.dll file. adtschema.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 adtschema.dll file. If you encounter one listed below (or similar), please consider the following suggestions.

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



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


Problems related to adtschema.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 adtschema.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of adtschema.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: ---

If the steps did not solve your adtschema.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 adtschema.dll
System Windows 10
File size 827392 bytes
Date 2017-03-18
File details
MD5 d2d97cab4847e2fc364a80156cbe7ce3
SHA1 ff2f0bac33628fd6eba808b87d79dd2c144fdeae
SHA256 7905cead9fcbcc093e676b2e0ea9f0b391dcf2a9e8829496ed6470bf3b46d196
CRC32 32dcb447
Example file location C:\Windows\System32\
Filename adtschema.dll
System Windows 8.1
File size 736768 bytes
Date 2014-11-21
File details
MD5 ffe2f54da7de767c943f18823913ec07
SHA1 44531a7ec0d96f80d3a86de352d7a9caf7442506
SHA256 2ecfbcfd86a88e8a7a13dc0fe68b91619f42ea19086af8a91d8f7ddcc9ea3b5f
CRC32 6b9e4e65
Example file location C:\Windows\System32\
Filename adtschema.dll
System Windows 8
File size 712192 bytes
Date 2012-07-26
File details
MD5 02c1314e2be3818bf118340ffe94eac6
SHA1 4bbf33a5671beebefa588097bb24607950487301
SHA256 d874fc67aa4cdb09dafbc700cf1473c55e4c0dd98b8198803471362ab0c7c482
CRC32 99d20171
Example file location 1: C:\Windows\System32\
Filename adtschema.dll
System Windows 7
File size 680448 bytes
Date -0001-11-30
File details
MD5 588cd0c78a7faae4186b5eea0af3ed67
SHA1 fca74c59e94defec30f7e6f8c7a802de349783da
SHA256 e957e4463d318a44ba5109ee3428624de901c5ff2ba358986df6c6f059ddbcc2
CRC32 141a9c30
Example file location C:\Windows\System32\
Filename adtschema.dll
System Windows 7
File size 680448 bytes
Date -0001-11-30
File details
MD5 ac8c80dc4f1a6e60c9a762c1799f0b39
SHA1 93f38e155efca9870fd996320c61f29508d8c380
SHA256 9fd3a62b4e476cbe6d94d587826b5d8c6eb8208035a20b8e17749312c251fd6a
CRC32 fe7b91ed
Example file location C:\Windows\System32\
Filename adtschema.dll
System Windows Vista
File size 617984 bytes
Date 2009-04-11
File details
MD5 99aa51a6ae40ded4a74776e6e1c066c1
SHA1 87b492639f08fce9f0f7676fa5ab787ce6001fe8
SHA256 7d6dc515863a36e37c0984651560e061747d06d7cc5f8ce7b2b485a91a1ce5c1
CRC32 b8376d73
Example file location ---
Filename adtschema.dll
System Windows Vista
File size 617984 bytes
Date -0001-11-30
File details
MD5 ec43d9cc95c3bb5fefdbcf22d375e1f5
SHA1 fc9f28ad54fe301ef012afe88fea01aaf7fa5ace
SHA256 088bf98e433f7e25889262549dc1c27fb0df8c26905b5bf4a0f69aa3da0995e5
CRC32 893b695c
Example file location ---