Troubleshoot wuaueng.dll Errors and Download File

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

wuaueng.dll file Windows Update Agent. 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 wuaueng.dll related errors on your device. You can also download wuaueng.dll file compatible with Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP devices which will (most probably) allow you to solve the problem.

Compatible with: Windows 10, Windows 8.1, Windows 8, Windows 7, Windows Vista, Windows XP

User popularity

3.1 Scanning for malicious software
3.2 System and driver update
3.3 System File Checker tool
3.4 System recovery

4 Download wuaueng.dll

4.1 List of wuaueng.dll file versions

File info

General information
Filename	wuaueng.dll
File extension	DLL
Description	Windows Update Agent

Software
Program	Microsoft® Windows® Operating System
Author	Microsoft Corporation

Details
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.)

Most common wuaueng.dll file related problems

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

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

wuaueng.dll

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

Problems related to wuaueng.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 wuaueng.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.

How to fix wuaueng.dll errors in just few steps?

Remember, before taking any action related to system files perform a backup copy of your data!

wuaueng.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

Windows files are commonly attacked by malicious software that prevents them from working properly. First step in addressing problems with wuaueng.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.

Installing relevant Microsoft Windows patches and updates may solve your problems related to wuaueng.dll file. Use dedicated Windows tool to perform the update.

Go to the Windows "Start" menu
Type "Windows Update" in the search field
Choose the appropriate software program (name may vary depending on your system version)
Check if your system is up to date. If any unapplied updates are listed, install them immediately.
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 wuaueng.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 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 wuaueng.dll file. After an error related to%fileextension% file has been discovered, the program attempts to automatically replace the wuaueng.dll file with properly working version. To use the tool:

Go to the Windows "Start" menu
Type "cmd" in the search field
Locate "Command Prompt" result – don't run it yet:
Click the right mouse button and select "Run as Administrator" option
Type "sfc /scannow" in console prompt to start the program and follow the instructions

Step 4: Restoring Windows system

Another approach is to restore system to previous state, before the wuaueng.dll file error occured. In order to restore your system, follow the instructions below

Go to the Windows "Start" menu
Type "System Restore" in the search field
Start the system restore tool – it's name may differ depending on version of the system
The application will guide you through the process – read the messages carefully
After the process has finished, restart your computer.

If all the above-mentioned methods failed and the wuaueng.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 wuaueng.dll file

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

Go to the folder where the file should be located and paste the downloaded file. Below is the list of wuaueng.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 Vista: C:\Windows\System32\
Windows XP: ---

If the steps did not solve your wuaueng.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 wuaueng.dll

System Windows 10

File size 2123264 bytes

Date 2017-03-18

Download

File details
	MD5	81567a2faafe973142c7a46348057190
	SHA1	e7aab8febe89e418729c796a3f3aefa14a2e1ae7
	SHA256	08de851ae765c31f60ef831fe1489dffab17e57e5a00c78fb8e85ca5d7716603
	CRC32	07b681f4
	Example file location	C:\Windows\System32\

Filename wuaueng.dll

System Windows 8.1

File size 2946560 bytes

Date 2014-11-21

Download

File details
	MD5	27b82fa07f323c79a0f237e8193affe7
	SHA1	2813532466f2b5b73876c5ff888bb67479e2143a
	SHA256	bfcdc8abd7fad67206b310c5cc8280235bce4d0dfb6cf14524a16e215cca78d5
	CRC32	a5c7f96e
	Example file location	C:\Windows\System32\

Filename wuaueng.dll

System Windows 8

File size 2704896 bytes

Date 2012-07-26

Download

File details
	MD5	1db46028d06fa2a8e4f81a83b8138057
	SHA1	4233b5bdda793893cef643b8d8ee23f2124696b8
	SHA256	2e2042497c5078401e98c8df6f4c2a685d85b88fafb3eedcabfbd9bb1646c0e7
	CRC32	e34dccbf
	Example file location	1: C:\Windows\System32\

Filename wuaueng.dll

System Windows 7

File size 2420736 bytes

Date 2010-11-21

Download

File details
	MD5	9df12edbc698b0bc353b3ef84861e430
	SHA1	f0557f4b567b6b83f03dda6f6cfa0ef3ec9033bb
	SHA256	5777972dc6242096ee2d4daeefc822de9077560322ded7b9696bb23b7c240403
	CRC32	6354eb9b
	Example file location	C:\Windows\System32\

Filename wuaueng.dll

System Windows Vista

File size 2156544 bytes

Date 2009-04-11

Download

File details
	MD5	cd13028318eea85d461c82906e0312ac
	SHA1	a430f8b6c549917fc218b39e61921f42be034eb0
	SHA256	7dc5ccc6cf047fa9adf2a48c4aca52f59de49e0fcd9867e54079aeadad4c03ba
	CRC32	219fc697
	Example file location	C:\Windows\System32\

Filename wuaueng.dll

System Windows XP

File size 1135616 bytes

Date 2008-04-14

Download

File details
	MD5	d2f77e5dc1800bbc2cffb5e76586b293
	SHA1	918c3a017adbe83caf906565e098ffee27af085f
	SHA256	5463c975d8bf990b10b958338c5e47eab2fe5e3020dbd044a9f67c9e8aeb10c4
	CRC32	e7f6eed5
	Example file location	---