Repair and Download AppIdPolicyEngineApi.dll Now

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

AppIdPolicyEngineApi.dll file AppId Policy Engine API Module. 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 AppIdPolicyEngineApi.dll related errors on your device. You can also download AppIdPolicyEngineApi.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows 7 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

File info

General information
Filename AppIdPolicyEngineApi.dll
File extension DLL
Description AppId Policy Engine API Module
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.)
Fix File Errors

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

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



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


Problems related to AppIdPolicyEngineApi.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 AppIdPolicyEngineApi.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.

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

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of AppIdPolicyEngineApi.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\

If the steps did not solve your AppIdPolicyEngineApi.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 AppIdPolicyEngineApi.dll
System Windows 10
File size 283136 bytes
Date 2017-03-18
File details
MD5 021102ffbbf9031e0e78e0e74aed1b3c
SHA1 cb70dc2497bcb8dce091df5ca85afd2c20e96fc0
SHA256 fd7e0a4d22326da7a143bacfc0404652af61a8f7b3263688fa230d63ebe6bce9
CRC32 ad7af2e3
Example file location C:\Windows\System32\
Filename AppIdPolicyEngineApi.dll
System Windows 8.1
File size 226304 bytes
Date 2014-11-21
File details
MD5 74424cdc86a1e912dc9209a1bf4a2cb1
SHA1 f92c0d1cdcb4c7d1be5816d2def51675c52562a2
SHA256 1b2d02b09e939ab302c07f64be479ac15d7280ecd83baa0f8f2fbc7b9cf35584
CRC32 c6a20710
Example file location C:\Windows\System32\
Filename AppIdPolicyEngineApi.dll
System Windows 8
File size 226816 bytes
Date 2012-07-26
File details
MD5 a6162c90c8df7513819362a37d2de621
SHA1 3ae7debd49aec1bcb24d1c806653414278d212d1
SHA256 e6f1b45ded4800c064ea37819e0f4e261df185a9eb4c0d6f54052b6c5e99a60f
CRC32 33ad811e
Example file location 1: C:\Windows\System32\
Filename AppIdPolicyEngineApi.dll
System Windows 7
File size 312320 bytes
Date 2009-07-14
File details
MD5 19ef7393717ffadb404ee1f0b0799ecd
SHA1 d37d5f36b6cf31564179d9a6eb63b1af494357ad
SHA256 0f248b037ecd41a686ea2bd5e049195a1e83e521d0420a8a28c3c3577aa1447c
CRC32 daa8980e
Example file location C:\Windows\System32\
Filename AppIdPolicyEngineApi.dll
System Windows 7
File size 203264 bytes
Date -0001-11-30
File details
MD5 a15d8e9dd4efc7b650a82ef6a5f0e82b
SHA1 b704351d186fee51c3d0550185dd3afdbefa8c82
SHA256 0f725c6cfb175912053bd41ef2118eb5168450afe9f49dcda73a45fd7561b464
CRC32 2ad45025
Example file location C:\Windows\System32\