microsoft.security.applicationid.policymanagement.cmdlets.dll - Analyze and How to Fix Errors

⚠️ Important Notice: Manage Microsoft Security Application ID Policy Management Cmdlets DLL for administrators. Manually replacing system libraries can brick future Windows updates or cause critical system failures.

Architecture:	32-bit (x86)	Compatible with 32 and 64-bit Windows
Creation date	14.07.2009 03:30:11
File version	6.1.7600.16385
Antivirus scan	✅ Clean	No viruses detected.
Digital signature	🟡 Not signed	Signature missing. The file may have been modified.
Hash Integrity	✅ MD5: Verified	File Hash protection is missing.
File size	40 kb.	40960 bytes.

Hashes:

MD5: 7ac6429fae66ccdc81aedc31bc8d488b ✅
SHA-1: 530f048a770456ad04d32c53594880df07de0d25
SHA-256: 35c23c304025587726aecb9d1dac0c90b159be6fe706e8e4a7c681116da41270
SHA-512: d3d486faa83043f062e4226d74a1cc2ceb9dc3dc0a47953ef6ba7efe1d80353069ee541315ad88b30b6ab0b4261611d4d8ac62cab0ccd2d5ffd931d8d041fcd9

✅ This file is compatible with 32-bit Windows and can run on ✅ 64-bit Windows (via the WOW64 subsystem).

1. File Description

The microsoft.security.applicationid.policymanagement.cmdlets.dll is a native Microsoft dynamic-link library file. It belongs to the Windows AppLocker module within PowerShell.

This assembly handles the fundamental logic for configuring, generating, and enforcing Application Control policies (AppLocker). It contains the underlying infrastructure for specific administrative cmdlets, such as Get-AppLockerPolicy and New-AppLockerPolicy.

2. Standard File Location

By default, this system DLL file is located in the Windows Component Store or Assembly cache dependencies:

• Primary Path: C:\Windows\System32\WindowsPowerShell\v1.0\Modules\AppLocker\
• Alternative Cache Location: C:\Windows\assembly\NativeImages ... (Global Assembly Cache)

3. How to Fix Errors Without Downloading Anything

Errors associated with this file usually manifest as a "Bad Image", "Missing DLL", or crashes when launching Windows Security / PowerShell tools.

Because downloading system DLLs from third-party websites exposes your computer to malware and compatibility issues, you must utilize Windows' built-in self-healing utility features.

Step 1: Run System File Checker & DISM

This command automatically finds corrupted or missing system items and replaces them with an authentic, locally cached copy.

1. Press Windows Key + X and select Terminal (Admin) or Command Prompt (Admin).
2. Execute the deployment image servicing command first:

   DISM.exe /Online /Cleanup-image /Restorehealth

3. Once finished, type the following file scanner script and press Enter:

   sfc /scannow

4. Restart your computer.

Step 2: Re-register the AppLocker Module Package

If the file is intact but Windows cannot map its commands, force-register your local application security infrastructure through PowerShell:

1. Right-click the Start menu and launch Windows PowerShell (Admin).
2. Execute this instruction script to reset your AppX dependencies:

   Get-AppxPackage Microsoft.SecHealthUI -AllUsers | Reset-AppxPackage

3. Re-register overall platform assemblies by typing:

   Get-AppXPackage -AllUsers | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register "( .InstallLocation)\AppXManifest.xml"}

Step 3: Clear Temporary Assembly Cache

Corrupted native compilations (.ni.dll) generate conflicts. Clearing them forces Windows to rebuild the cmdlet components properly:

1. Open Command Prompt (Admin).
2. Flush the Native Image Generator (Ngen) queue cache using this path:

   C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe update

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If you are experiencing a specific error code like 0xc0000020 (Bad Image) or an explicit crash message, let me know the exact error text and which app you are trying to open so I can narrow down the root cause.

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📊 Diagnostics Tool: Verify Your microsoft.security.applicationid.policymanagement.cmdlets.dll File

Worried that the file on your PC has been modified by malware? Drop it into the form below. Our script will verify its file size, cryptographic hash (MD5/SHA-1), and check for a valid Microsoft digital signature.

Connected files:
mscoree.dll
└── Microsoft.Security.ApplicationId.PolicyManagement.Cmdlets.dll

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