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What is wuaueng.dll?

Part of Windows Update Agent by Microsoft

What is it?

If Windows Update or Automatic Updates is turned on, the latest version of the Windows Update Agent will be automatically downloaded and installed on your computer. If you go to Windows Update before it gets installed automatically, you will see a message to install the Windows Update Agent.
Description of wuaueng.dll from Microsoft
When you turn on automatic updating, most updates will download and install without you having to lift a finger. But sometimes Windows Update will need your input during an installation. In this case, you'll see an alert in the notification area at the far right of the taskbar—be sure to click it. If you don't respond to a Windows Update alert, your PC might end up missing an important download.
(wuaueng.dll is a system file that is installed with Windows)
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How is wuaueng.dll loaded?

Hosted service - wuaueng.dll is typically associtated with identifier name of c78655bc80301d76ed4fef1c1ea40a7d with and identifier of wuauserv. A Windows Hosted Service is a service that is implemented as dynamically-linked library (DLL) run under the (Service Host) SvcHost process.

Community

What is the community is seeing?What is the community is doing?
About 0.2% of all Boost users have the wuaueng.dll file.Of the 0.2% of wuaueng.dll users, less than 1% have disabled it.
How resource intensive is the loaded module wuaueng.dll?
Comparison based on the average resource utilization across all programs.
                              0.10517129% CPU8764.3%
Average thread CPU utilization across all loaded modules is 0.00120%.
          4 context switches/sec26.7%
Average context switches for all programs is 15 per second.
Typical file (disk image) location:
C:\Windows\System32\wuaueng.dll

Are there other versions of Windows Update Agent?

What else is related?

What Windows OS versions does this run on?

Windows 8.1 Pro with Media Center (6.2.9200.0)

About Microsoft Corporation

Microsoft, founded in 1975 by Bill Gates and Paul Allen, is a veteran software company, best known for its Microsoft Windows operating system and the Microsoft More...
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File details

File name: wuaueng.dll
Publisher: Microsoft Corporation (verified)
Name: Windows Update Agent
Description: Microsoft® Windows® Operating System
Version: 7.9.9600.17093 (winblue_gdr.140410-1503)
Product version: 7.9.9600.17093
Size: 3.3 MB
Original file name: wuaueng.dll.mui
Windows file protection: Yes

Resource utilization

Total CPU: 0.1051712940%
Privileged CPU: 0.0348540912%
User CPU: 0.0703172028%
CPU Cycle count /sec: 3,304,289
Context switches /sec: 4
Module memory size: 3.32 MB

Hosted service details

Name: e4ca434f251681590d0538bc21c32d2f
Command: wuauserv

Image hashes

MD5: 9700baa88e172ad628d352c3ee3e7d4e
SHA-1: e1df78386ad47e624241694954d1abcf32d54920

PE image details

CLR assembly: Yes
CLR NGENed: No
Subsystem: Windows GUI
Langauge*: Microsoft Visual C# / Basic .NET
File packed: No
Import Table
api-ms-win-core-com-l1-1-0.dll
api-ms-win-core-com-l1-1-1.dll
api-ms-win-core-datetime-l1-1-1.dll
api-ms-win-core-debug-l1-1-1.dll
api-ms-win-core-errorhandling-l1-1-1.dll
api-ms-win-core-file-l1-2-0.dll
api-ms-win-core-file-l1-2-1.dll
api-ms-win-core-file-l2-1-0.dll
api-ms-win-core-file-l2-1-1.dll
api-ms-win-core-handle-l1-1-0.dll
api-ms-win-core-heap-l1-2-0.dll
api-ms-win-core-interlocked-l1-2-0.dll
api-ms-win-core-io-l1-1-1.dll
api-ms-win-core-libraryloader-l1-1-1.dll
api-ms-win-core-libraryloader-l1-2-0.dll
api-ms-win-core-localization-l1-2-0.dll
api-ms-win-core-localization-l1-2-1.dll
api-ms-win-core-memory-l1-1-1.dll
api-ms-win-core-memory-l1-1-2.dll
api-ms-win-core-processenvironment-l1-2-0.dll
api-ms-win-core-processthreads-l1-1-1.dll
api-ms-win-core-processthreads-l1-1-2.dll
api-ms-win-core-profile-l1-1-0.dll
api-ms-win-core-registry-l1-1-0.dll
api-ms-win-core-shlwapi-obsolete-l1-1-0.dll
api-ms-win-core-string-l1-1-0.dll
api-ms-win-core-string-l2-1-0.dll
api-ms-win-core-synch-l1-2-0.dll
api-ms-win-core-sysinfo-l1-2-0.dll
api-ms-win-core-sysinfo-l1-2-1.dll
api-ms-win-core-timezone-l1-1-0.dll
api-ms-win-core-version-l1-1-0.dll
api-ms-win-core-winrt-error-l1-1-0.dll
api-ms-win-core-winrt-error-l1-1-1.dll
api-ms-win-core-winrt-l1-1-0.dll
api-ms-win-core-winrt-string-l1-1-0.dll
api-ms-win-devices-config-l1-1-1.dll
api-ms-win-eventing-provider-l1-1-0.dll
api-ms-win-power-base-l1-1-0.dll
api-ms-win-security-base-l1-2-0.dll
api-ms-win-security-lsalookup-l1-1-1.dll
api-ms-win-security-sddl-l1-1-0.dll
api-ms-win-service-core-l1-1-1.dll
api-ms-win-service-management-l1-1-0.dll
api-ms-win-service-management-l2-1-0.dll
api-ms-win-service-private-l1-1-1.dll
api-ms-win-service-winsvc-l1-2-0.dll
cfgmgr32.dll
crypt32.dll
esent.dll
iphlpapi.dll
kernel32.dll
mspatcha.dll
msvcrt.dll
ntdll.dll
rpcrt4.dll
shell32.dll
shlwapi.dll
sspicli.dll
user32.dll
userenv.dll
version.dll
wevtapi.dll
winhttp.dll
winspool.drv
winsta.dll
wintrust.dll
wmsgapi.dll
ws2_32.dll
wtsapi32.dll
Export Table
dllinstall
dllmain
dllregisterserver
dllunregisterserver
generalizeforimaging
getauoptionsex
getenginestatusinfo
registerserviceversion
servicehandler
servicemain
wuautoupdateatshutdown
wucheckforupdatesatshutdown
wuservicemain
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