VersionsVersions

7.6.7600.256 (winmain_wtr_wsus3sp2(oobla).120602-1505) 44.43%
7.6.7600.256 (winmain_wtr_wsus3sp2(oobla).120602-1459) 43.26%
7.6.7600.256 (winmain_wtr_wsus3sp2(oobla).120602-1459) 1.47%
7.6.7600.243 (winmain_wtr_wsus3sp2(oobla).110811-1411) 0.73%
7.4.7600.229 (winmain_wtr_wsus3sp2(wmbla).100506-1159) 1.03%
7.4.7600.226 (winmain_wtr_wsus3sp2(wmbla).090806-1850) 0.44%
7.4.7600.226 (winmain_wtr_wsus3sp2(wmbla).090806-1834) 1.47%
7.4.7600.226 (winmain_wtr_wsus3sp2(wmbla).090806-1834) 0.59%
7.2.6001.788 (winmain_oob/wu_wsuswlc(wmbla).081016-1330) 1.17%
7.2.6001.784 (winmain_oob/wu_wsuswlc(wmbla).080718-1904) 0.73%
7.1.6001.65 (Longhorn(wmbla).080123-1638) 0.15%
7.0.6000.381 (winmain(wmbla).070730-1740) 0.73%
7.0.6000.374 (winmain(wmbla).070416-2057) 0.15%
5.8.0.2694 built by: dnsrv(wmbla) 0.15%
5.8.0.2469 built by: lab01_n(wmbla) 0.15%
5.7.3790.1830 (srv03_sp1_rtm.050324-1447) 0.15%
5.4.3790.5512 (xpsp.080413-0852) 0.15%
5.4.3790.5512 (xpsp.080413-0852) 0.59%
5.4.3790.5512 (xpsp.080413-0852) 0.59%
5.4.3790.5512 (xpsp.080413-0852) 0.15%
5.4.3790.5512 (xpsp.080413-0852) 0.29%
5.4.3790.5512 (xpsp.080413-0852) 0.15%
5.4.3790.5512 (xpsp.080413-0852) 0.15%
5.4.3790.5512 (xpsp.080413-0852) 0.15%
5.4.3790.3311 (xpsp.080211-1047) 0.29%
5.4.3790.3300 (xpsp.080125-0707) 0.15%
5.4.3790.2180 (xpsp_sp2_rtm.040803-2158) 0.15%
5.4.3790.2180 (xpsp_sp2_rtm.040803-2158) 0.15%
5.4.3790.2180 (xpsp_sp2_rtm.040803-2158) 0.15%
5.4.3790.2180 (xpsp_sp2_rtm.040803-2158) 0.15%

Relationships

wuaueng.dll

Windows Update Agent by Microsoft Corporation (Signed)

Remove wuaueng.dll
This is a Windows system installed file with Windows File Protection (WFP) enabled.

Overview

There are 30 versions of wuaueng.dll in the wild, the latest version being 7.6.7600.256 (winmain_wtr_wsus3sp2(oobla).120602-1505). The average file size is about 295.49 KB. The file is a digitally signed and issued to Microsoft Corporation by Microsoft Corporation. The executable is a .NET framework assembly utilizing the CLR.

What is wuaueng.dll?

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.

About wuaueng.dll (from Microsoft Corporation)

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,

DetailsDetails

File name:wuaueng.dll
Publisher:Microsoft Corporation
Product name:Windows Update Agent
Description:Microsoft® Windows® Operating System
Typical file path:C:\Windows\System32\wuaueng.dll
Original name:wuaueng.dll.mui
Certificate
Issued to:Microsoft Corporation
Authority (CA):Microsoft Corporation
Expiration date:Monday, April 26, 2010

BehaviorsBehaviors

(Note, the behaviors below are for all versions of wuaueng.dll, select a unique version for details.)
Hosted services
Runs as a shared service under the Windows svcHost
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'
  • Shared name is 'wuauserv'

VersionsAll file variations of wuaueng.dll

MD5SHA-1File size
d9ef901dca379cfe914e9fa13b73b4c4 64a55a014a2de34f86f17cfa31c727e270fcd83f 2.32 MB
fc3ec24fce372c89423e015a2ac1a31e 12a8e93523c7f22889a3f8418897c57bfc02046a 1.84 MB
37e17df31e2883f394fabfbc93ac3069 55afc2e88858f90c3b4f7a9a03bac620f86b13ef 22.52 KB
dcb24800bf4616dc2df5d38ed3ef4c27 da7b83c5ab788892018065783719b8101e9ed643 21.99 KB
fc1e3b06ae8d160b686c5d04b5e85371 2f3f9e734c08aa183ff57dfc81a5e79ba34b805f 21.99 KB
fb3796754fe00f0bdc87a36f164a5f4d 9b0891bfd8ad67904d29daa6015784b7418afd4d 2.31 MB
6298277b73c77fa99106b271a7525163 25fb0fbdd2f8c3b425af38c2676bbe39a2ed2a9b 1.84 MB
02e4055488047729b333f99d93877038 06ac93874451961b96642e4ec32d97fc083559dd 22.21 KB
aae1a6ffba2b0436e91795120f48c461 5ac725fec0022ca47d19376b17c0dab8dfab694a 23.02 KB
e53ae6443f6319d7ec22672cd473eadb 27fa0ed0193c78a8cca1c01eed83f030397f883b 25.2 KB
727f02f3b19bab3639e9358ffdd295e0 0cb330e4984102ea996b8d554ba8c1dbae94e0c3 25.34 KB
d29ad7484b98279ed21877de051a180f 886bc8bdcd981347015e9791fc9b7be0c6c6b7fb 25.34 KB
365980da5b43b397542429b0743e6226 a788de3204e0d61cc774f4e5c2d50c5138f78e56 25.34 KB
b72508649dad03bcb5d708edb1e3e57e 89f46fc1485391e721d5d975f8598935c29e7551 17.96 KB
0732c538e9891714041638f777f368fc 78fc0497dcbde7cfbf7710b3395b271a5391f7dc 18.27 KB
ef7576af44b484f7a3e6072d633bab34 db69da68dfc5e0ec71f8e61f5149b1e7026bd896 12 KB
1e8fdddef3fe260badab06dae10d753a 24cdb8d40768470b65873632b72b059e78a6fc84 6.5 KB
eb4ea477b7b4959d41b153c6d3cd869b 9cbf9ac68f0733239d630aba00d44d657f9db06d 6.5 KB
00ac7e65fdb9e716f18befd59598a941 846852e66571b93da12556d178b2ad06b2f37844 6.5 KB
92f33cf2ed203160b68c16c51074d531 7760c2f853289ad39f5861fd432df6c289c3c016 6.5 KB
2bc349942c6ce07736f78bec266816ce a19da4fff3b95c947a1b436ec8ada97459672905 6.5 KB
39294b4c44b678251c92b9c3717b4991 1b1341a6f2e6e0334f28476447d05e5c5970a5bf 6.5 KB
134d66b32ef1f498f65cbf1468b75f94 78f7e30f3fbde0cabd9cf58fd234c8c76fdcee8b 6.5 KB
04550d5eb7ee82c115db547c01df09fd cc6f3fbc661f9d235ded2e7d82eedd81ffe2a75e 6.5 KB
d17e3330856c16b51651f9431fe197ac 6ce040fce86482cff39353c19cc8261438d8ca2a 6.5 KB
d04cd97bd70c7b41376718c20105535d 612d011037d6008bdb7e96da4e16dd2d796bc6c1 6.5 KB
3a494adaaf9d02dcd0894cedd03b73c1 5d7c6b0abba22c438fdf0f3452261d333f74a555 6.5 KB
57fe69b6648e73559552779820fa0827 c3d89938a0f2abfa7a94e28e8a7a3dc592edb129 6.5 KB
0eb66c2f58452588c75f3c51bb41c3b4 d1b40eea0ec5de47eb7185e9511ad984a51732b6 6.5 KB
09397d193c8c996e6271e7a1394ecb38 d9e27f4590281b83c331a434bcd129f4699216b8 6.5 KB

Windows OS versionsDistribution by Windows OS

OS versiondistribution
Windows 7 Home Premium 42.75%
Windows 7 Ultimate 23.75%
Windows 7 Professional 9.25%
Windows Vista Home Premium 9.25%
Microsoft Windows XP 4.75%
Windows Vista Home Basic 2.50%
Windows 7 Ultimate N 2.00%
Windows 7 Home Basic 1.75%
Windows 7 Starter 1.50%
Windows Vista Business 1.25%
Windows 7 Enterprise 0.75%
Windows Vista Ultimate 0.25%
Windows Vista™ Home Premium 0.25%

Distribution by countryDistribution by country

United States installs about 51.19% of Windows Update Agent.

OEM distributionDistribution by PC manufacturer

PC Manufacturerdistribution
Dell 23.77%
Hewlett-Packard 17.94%
Toshiba 12.56%
ASUS 12.56%
Acer 9.19%
Sony 5.38%
Lenovo 3.59%
GIGABYTE 2.69%
Intel 2.69%
MSI 1.79%
American Megatrends 1.79%
Samsung 1.57%
Gateway 1.35%
Alienware 1.12%
Medion 0.90%
Compaq 0.45%
NEC 0.45%
Packard Bell 0.22%
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