Troubleshoot Appx.psm1 Issues (Free Download)

Last Updated: 09/14/2019
[Time Needed for Reading: ~4-6 minutes]

Appx.psm1, also known as a Windows PowerShell Script Module file, was created by Microsoft for the development of Windows 10. PSM1 files fall under under the Developer (Windows PowerShell Script Module) file type category.

The first version of Appx.psm1 was released for the Windows 8 Operating System on 08/01/2012 inside Windows 8. The newest file release date for Windows 10 was 07/29/2015 [version 10]. Appx.psm1 is bundled with the software package in Windows 10, Windows 8.1, and Windows 8.

Please continue reading to find your correct Appx.psm1 file version download (free), detailed file information, and PSM1 file troubleshooting instructions.

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File Overview

General Information
File Name: Appx.psm1
File Extension: PSM1 file extension
File Type: Developer
Description: Windows PowerShell Script Module
User Popularity Rating:
Developer and Software Information
Software Program: Windows 10
Developer: Microsoft
Software: Windows
Software Version: 10
File Details
File Size (Bytes): 3779
Oldest File Date: 06/17/2012
Latest File Date: 03/18/2017

What are Appx.psm1 Error Messages?

General Appx.psm1 Runtime Errors

Appx.psm1 file errors often occur during the startup phase of Windows, but can also occur while the program is running. These types PSM1 errors are also known as “runtime errors” because they occur while Windows is running. Here are some of the most common Appx.psm1 runtime errors:

Microsoft Visual C++ Runtime Library

Runtime Error!

Program: C:\Windows\System32\WindowsPowerShell\v1.0\Modules\Appx\Appx.psm1

This application has requested the Runtime to terminate it in an unusual way.
Please contact the application's support team for more information.

Most PSM1 errors are due to missing or corrupt files. Your Appx.psm1 file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Windows), or deleted by a malware infection. Furthermore, Appx.psm1 file corruption could be caused from a power outage when loading Windows, system crash while loading or saving Appx.psm1, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix Appx.psm1 Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your Appx.psm1 issue. These troubleshooting steps are listed in the recommended order of execution.

Step 1: Restore your PC back to the latest restore point, "snapshot", or backup image before error occurred.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. When you see the search box, type "System Restore" and press "ENTER".
  3. In the search results, find and click System Restore.
  4. Please enter the administrator password (if applicable / prompted).
  5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
  6. Restore your computer to that backup image.

If the Step 1 fails to resolve the Appx.psm1 error, please proceed to the Step 2 below.

Step 2: Run SFC (System File Checker) to restore the corrupt or missing Appx.psm1 file.

System File Checker is a utility included with every Windows version that allows you scan and restore corrupted system files. Use the SFC tool to fix missing or corrupt Appx.psm1 files (Windows XP, Vista, 7, 8, and 10):

  1. Hit the Windows Start button
  2. In the search box, type "cmd" but DO NOT PRESS "ENTER".
  3. Press and hold "CTRL-Shift" on your keyboard while pressing "ENTER".
  4. You'll be prompted with a permission dialog box.
  5. In the box, click "YES".
  6. You should have a black screen with a blinking cursor.
  7. In that black screen, type "sfc /scannow" and hit "ENTER".
  8. SFC will begin scanning for Appx.psm1 issues and any other system file problems.
  9. Follow any on-screen commands to complete the process.

Please be aware that this scan might take a while, so please be patient while it is working.

If this Step 2 fails as well, please proceed to the Step 3 below.

sfc /scannow

Step 3: Perform a Windows Update.

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many Appx.psm1 error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

  1. Hit the Windows Start button
  2. In the search box, type "Update" and press "ENTER".
  3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
  4. If updates are available for download, click "Install Updates".
  5. After the update is completed, restart your PC.

If Windows Update failed to resolve the Appx.psm1 error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your Appx.psm1 File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate Appx.psm1 file version. We maintain a comprehensive database of 100% malware-free Appx.psm1 files for every applicable version of Windows. Please follow the steps below to download and properly replace you file:

  1. Locate your Windows operating system version in the list of below "Download Appx.psm1 Files".
  2. Click the appropriate "Download Now" button and download your Windows file version.
  3. Copy the file into the appropriate directory for your Windows version:

  4. Windows 10: C:\Windows\System32\WindowsPowerShell\v1.0\Modules\Appx\
    Windows 8.1: C:\Windows\System32\WindowsPowerShell\v1.0\Modules\Appx\
    Windows 8: C:\Windows\System32\WindowsPowerShell\v1.0\Modules\Appx\
  5. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

GEEK TIP : We must emphasize that reinstalling Windows will be a very time-consuming and advanced task to resolve Appx.psm1 problems. To avoid data loss, you must be sure that you have backed-up all of your important documents, pictures, software installers, and other personal data before beginning the process. If you are not currently backing up your data, you need to do so immediately.

Download Appx.psm1 Files (Malware-Tested 100% Clean)

CAUTION : We strongly advise against downloading and copying Appx.psm1 to your appropriate Windows system directory. Microsoft typically does not release Windows PSM1 files for download because they are bundled together inside of a software installer. The installer's task is to ensure that all correct verifications have been made before installing and placing Appx.psm1 and all other PSM1 files for Windows. An incorrectly installed PSM1 file may create system instability and could cause your program or operating system to stop functioning altogether. Proceed with caution.

Windows 10
Windows 8.1
Windows 8

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MSFT_UserResource.psm1 Windows PowerShell Script Module Windows 8.1 16662 C:\Windows\System32\WindowsPowerShell\v1.0\Modu...
WindowsErrorReporting.... Windows PowerShell Script Module Windows 10 166 C:\Windows\System32\WindowsPowerShell\v1.0\Modu...

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