uiautomationclient.ni.dll - Analyze and How to Fix Errors

⚠️ Important Notice: Optimize your UI automation with uiautomationclient.ni.dll - Enhance application testing and control. 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	23.05.2009 03:22:42
File version	3.0.6920.4902
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	441.5 kb.	452096 bytes.

Hashes:

MD5: afdd400ea4f93609d2306469e4c47bec ✅
SHA-1: 2d866de2a08a3823c8ccda3de7ef97788fbead90
SHA-256: 973c7c4bd911d227a2f47e3151102f8cd12554d77bb43a087a5c5669cde103ee
SHA-512: b5067e50595014dd76a41893f3d34cc6c55daa7c78768303da3e68faedb7cb2e61535f2702dab7cb8004ecf4ed50d6552728bbc59c85ab3f0ee98cdd57f01790

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

How to Fix uiautomationclient.ni.dll Errors Without Downloading

You can fix errors related to uiautomationclient.ni.dll by repairing the corrupted system files or .NET Framework installations that generate this file automatically. The "ni" stands for Native Image, meaning this file is generated by the system via the .NET Native Image Generator (NGEN). Downloading this file from third-party websites is unsafe and unnecessary.

Here are the step-by-step methods to fix it.

Method 1: Run SFC and DISM Tools

Windows has built-in tools to scan and replace corrupted system files automatically.

1. Press the Windows Key, type cmd, and select Run as administrator.
2. Type sfc /scannow and press Enter. Wait for the scan to finish.
3. Type DISM /Online /Cleanup-Image /RestoreHealth and press Enter.
4. Restart your computer.

Method 2: Repair the .NET Framework

Since this DLL is part of the .NET Framework UI Automation components, repairing .NET will regenerate a clean copy of the file.

1. Open the Control Panel and click on Programs and Features.
2. Look for Microsoft .NET Framework (or click Turn Windows features on or off on the left side).
3. If it is listed in Programs, select it, click Uninstall/Change, and choose Repair.
4. If you are using Windows 11/10 features, uncheck the .NET Framework boxes, click OK to remove them, restart, and then re-check the boxes to clean-install them.

Method 3: Force NGEN to Regenerate Native Images

You can force Windows to rebuild the Native Image cache, which recreates the .ni.dll file.

1. Open Command Prompt as administrator.
2. Execute the following command for 64-bit systems: C:\Windows\Microsoft.NET\Framework64\v4.0.30319\ngen.exe update
3. Execute this command for 32-bit systems: C:\Windows\Microsoft.NET\Framework\v4.0.30319\ngen.exe update
4. Wait for the optimization process to complete, then restart your PC.

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To help me provide more specific steps, could you tell me:

• When does this error pop up? (e.g., at Windows startup, or when opening a specific app?)
• What is the exact error message displayed on your screen?

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📊 Diagnostics Tool: Verify Your uiautomationclient.ni.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.

Other versions:
️ uiautomationclient.ni.dll 3.0.6920.4902 64-bit (x64)
Similar files:
️uiautomationclientsideproviders.dll | ️uiautomationclient.dll | ️uiautomationclientsideproviders.resources.dll | ️uiautomationclient.resources.dll | ️uiautomationclientsideproviders.ni.dll