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appid.sys - Repair Issues and Download

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

appid.sys file AppID Driver. 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 appid.sys related errors on your device. You can also download appid.sys file compatible with Windows 10, Windows 8.1, Windows 8, 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
User popularity

Fix appid.sys errors

File info

General information
Filename appid.sys
File extension SYS
Description AppID Driver
Software
Program Microsoft® Windows® Operating System
Author Microsoft Corporation
Details
MIME type application/octet-stream
File type Driver
System Windows NT 32-bit
Copyrights © Microsoft Corporation. All rights reserved.
Character set Unicode
Language cod English (U.S.)
appid.sys

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

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

appid.sys

Error

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

OK

Problems related to appid.sys 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 appid.sys 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.

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

The last solution is to manually download and replace appid.sys 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 appid.sys file.

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

  • Windows 10: C:\Windows\System32\drivers\
  • Windows 8.1: C:\Windows\System32\drivers\
  • Windows 8: 1: C:\Windows\System32\drivers\
  • Windows 7: C:\Windows\System32\drivers\

If the steps did not solve your appid.sys 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 appid.sys
System Windows 10
File size 154528 bytes
Date 2017-03-18
Download
File details
MD5 098d5028c4c0636e8d1bd8c5a54ebebf
SHA1 469c8aa0e7c8930f4c9fbd69631f159e1893a8bb
SHA256 9ab4a040c0856ba21d155da135bdfe7b7cdff90acc77a73b9ba82bb705221d1f
CRC32 43ca14e5
Example file location C:\Windows\System32\drivers\
Filename appid.sys
System Windows 8.1
File size 71168 bytes
Date 2014-11-21
Download
File details
MD5 07501a1b68bd333b3c61d4a5cfbb021f
SHA1 1b2185c3eae407b243311734a5c98b5e04d024fa
SHA256 61c880b11786205d4ccdf56b8a736a3dd5d2eda38669eafe0b14a3f2286c99ab
CRC32 9e694bc4
Example file location C:\Windows\System32\drivers\
Filename appid.sys
System Windows 8
File size 67072 bytes
Date 2012-07-26
Download
File details
MD5 cb3613e82a5b058ab6a69846b0ddc6c5
SHA1 2b864e0405b3e9dc0a55c346bb95749bc2f758ab
SHA256 56c2e1dd51c8edb5057a2dcf5b12400695715bdcf81a9d75c786186d08b80147
CRC32 eb017147
Example file location 1: C:\Windows\System32\drivers\
Filename appid.sys
System Windows 7
File size 61440 bytes
Date 2010-11-21
Download
File details
MD5 89a69c3f2f319b43379399547526d952
SHA1 f606adc12f28154a1ad1373eba8cc6883895d740
SHA256 8abdb4b8e106f96ebba0d4d04c4f432296516e107e7ba5644ed2e50cf9bb491a
CRC32 29bd06f7
Example file location C:\Windows\System32\drivers\