Voici les logs de windowsupdate (j'y comprends pas grand chose à part failed.) :
2015-04-18 15:22:01:089 2816 164c WUApp No EULA acceptance needed
2015-04-18 15:22:01:090 988 9ac AU AU received approval from Ux for 1 updates
2015-04-18 15:22:01:090 988 9ac AU AU setting pending client directive to 'Progress Ux'
2015-04-18 15:22:01:090 5628 1728 CltUI AU client got new directive = 'Interactive Progress', serviceId = {9482F4B4-E343-43B6-B170-9A65BC822C77}, return = 0
2015-04-18 15:22:01:099 988 14b0 AU BeginInteractiveInstall invoked for Download
2015-04-18 15:22:01:099 988 14b0 AU Auto-approving update for download, updateId = {5534AE2C-09AC-4541-AFB2-954EE1E1DC10}.203, ForUx=1, IsOwnerUx=1, HasDeadline=0, IsMinor=0
2015-04-18 15:22:01:099 988 14b0 AU Auto-approved 1 update(s) for download (for Ux)
2015-04-18 15:22:01:099 988 14b0 AU UpdateDownloadProperties: 0 download(s) are still in progress.
2015-04-18 15:22:01:099 988 14b0 AU #############
2015-04-18 15:22:01:099 988 14b0 AU ## START ## AU: Download updates
2015-04-18 15:22:01:099 988 14b0 AU #########
2015-04-18 15:22:01:099 988 14b0 AU # Approved updates = 1
2015-04-18 15:22:01:100 988 14b0 AU AU initiated download, updateId = {5534AE2C-09AC-4541-AFB2-954EE1E1DC10}.203, callId = {251DCFE2-0078-4BA3-8E19-EFA310D3128D}
2015-04-18 15:22:01:100 988 14b0 AU Successfully wrote event for AU health state:0
2015-04-18 15:22:01:100 988 14b0 AU Currently showing Progress UX client - so not launching any other client
2015-04-18 15:22:01:101 988 7a0 DnldMgr *************
2015-04-18 15:22:01:101 988 7a0 DnldMgr ** START ** DnldMgr: Downloading updates [CallerId = AutomaticUpdatesWuApp]
2015-04-18 15:22:01:101 988 7a0 DnldMgr *********
2015-04-18 15:22:01:101 988 7a0 DnldMgr * Call ID = {251DCFE2-0078-4BA3-8E19-EFA310D3128D}
2015-04-18 15:22:01:101 988 7a0 DnldMgr * Priority = 3, Interactive = 1, Owner is system = 0, Explicit proxy = 0, Proxy session id = 1, ServiceId = {9482F4B4-E343-43B6-B170-9A65BC822C77}
2015-04-18 15:22:01:101 988 7a0 DnldMgr * Updates to download = 1
2015-04-18 15:22:01:101 988 7a0 Agent * Title = Mise à jour de sécurité cumulative pour Internet Explorer 11 pour Windows 7 pour les systèmes x64 (KB3038314)
2015-04-18 15:22:01:101 988 7a0 Agent * UpdateId = {5534AE2C-09AC-4541-AFB2-954EE1E1DC10}.203
2015-04-18 15:22:01:101 988 7a0 Agent * Bundles 1 updates:
2015-04-18 15:22:01:101 988 7a0 Agent * {B186EF2C-4396-4288-8841-5A3FE094FA4E}.201
2015-04-18 15:22:01:101 988 7a0 DnldMgr *********** DnldMgr: New download job [UpdateId = {B186EF2C-4396-4288-8841-5A3FE094FA4E}.201] ***********
2015-04-18 15:22:01:101 988 7a0 DnldMgr * Queueing update for download handler request generation.
2015-04-18 15:22:01:101 988 7a0 DnldMgr Generating download request for update {B186EF2C-4396-4288-8841-5A3FE094FA4E}.201
2015-04-18 15:22:01:108 988 14b0 AU Successfully wrote event for AU health state:0
2015-04-18 15:22:01:108 988 14b0 AU # Pending download calls = 1
2015-04-18 15:22:01:108 988 14b0 AU <<## SUBMITTED ## AU: Download updates
2015-04-18 15:22:01:109 988 7a0 Handler Generating request for CBS update B186EF2C-4396-4288-8841-5A3FE094FA4E in sandbox C:\Windows\SoftwareDistribution\Download\6a93d30497f84d793f6f430d5d238380
2015-04-18 15:22:01:110 988 7a0 Handler Selected payload type is ptExpress
2015-04-18 15:22:01:110 988 7a0 Handler UH: DpxRestoreJob returned 0x80070002
2015-04-18 15:22:01:110 988 7a0 Handler Detected download state is dsHavePackage
2015-04-18 15:22:01:112 988 9ac AU Getting featured update notifications. fIncludeDismissed = true
2015-04-18 15:22:01:112 988 9ac AU No featured updates available.
2015-04-18 15:22:03:471 988 9ac Handler FATAL: CBS called Error with 0x80092004,
2015-04-18 15:22:03:471 988 7a0 Handler FATAL: UH: 0x80092004: Async stage operation failed in CUHCbsHandler::StageCbsPackage
2015-04-18 15:22:03:472 988 7a0 Handler FATAL: Request generation for CBS update complete with hr=0x80092004 and pfResetSandbox=0
2015-04-18 15:22:03:472 988 7a0 Handler FATAL: Error source is 106.
2015-04-18 15:22:03:472 988 7a0 DnldMgr FATAL: DM:CAgentDownloadManager::GenerateAllDownloadRequests: GenerateDownloadRequest failed with 0x80092004.
2015-04-18 15:22:03:481 988 7a0 DnldMgr WARNING: Download request generation failed with 0x80092004.
2015-04-18 15:22:03:481 988 7a0 DnldMgr Error 0x80092004 occurred while downloading update; notifying dependent calls.
2015-04-18 15:22:03:483 988 7a0 Agent *********
2015-04-18 15:22:03:483 988 7a0 Agent ** END ** Agent: Downloading updates [CallerId = AutomaticUpdatesWuApp]
2015-04-18 15:22:03:483 988 1530 AU >>## RESUMED ## AU: Download update [UpdateId = {5534AE2C-09AC-4541-AFB2-954EE1E1DC10}]
2015-04-18 15:22:03:483 988 7a0 Agent *************
2015-04-18 15:22:03:483 988 1530 AU # WARNING: Download failed, error = 0x80092004
2015-04-18 15:22:03:483 988 1530 AU #########
2015-04-18 15:22:03:483 988 1530 AU ## END ## AU: Download updates
2015-04-18 15:22:03:483 988 1530 AU #############
2015-04-18 15:22:03:483 988 1530 AU Successfully wrote event for AU health state:0
2015-04-18 15:22:03:484 988 1530 AU Currently showing Progress UX client - so not launching any other client
2015-04-18 15:22:03:484 988 1530 AU Successfully wrote event for AU health state:0
2015-04-18 15:22:03:486 988 9ac AU Getting featured update notifications. fIncludeDismissed = true
2015-04-18 15:22:03:486 988 9ac AU No featured updates available.
2015-04-18 15:22:05:118 988 3b0 AU BeginInteractiveInstall invoked for Install
2015-04-18 15:22:05:119 988 3b0 AU Auto-approved 0 update(s) for install (for Ux), installType=0
2015-04-18 15:22:05:119 988 3b0 AU WARNING: BeginInteractiveInstall failed, error = 0x8024000C
2015-04-18 15:22:05:119 5628 1728 CltUI FATAL: BeginInteractiveInstall for install returned code 8024000C
2015-04-18 15:22:05:148 5628 1728 CltUI WARNING: AU directive Interactive Progress is exiting due to error 8024000C
2015-04-18 15:22:05:155 988 5d0 AU AU received handle event
2015-04-18 15:22:05:155 988 5d0 AU No featured updates notifications to show
2015-04-18 15:22:05:155 988 5d0 AU UpdateDownloadProperties: 0 download(s) are still in progress.
2015-04-18 15:22:05:156 988 5d0 AU Triggering Offline detection (non-interactive)
2015-04-18 15:22:05:156 988 5d0 AU AU setting pending client directive to 'Install Complete Ux'
2015-04-18 15:22:05:156 988 5d0 AU WARNING: Pending directive, 'Install Complete Ux', is not applicable
2015-04-18 15:22:05:156 988 5d0 AU AU setting pending client directive to 'Download Approval'
2015-04-18 15:22:05:156 988 5d0 AU Successfully wrote event for AU health state:0
2015-04-18 15:22:05:156 988 5d0 AU #############
2015-04-18 15:22:05:156 988 5d0 AU ## START ## AU: Search for updates
2015-04-18 15:22:05:156 988 5d0 AU #########
2015-04-18 15:22:05:156 988 7a0 Report REPORT EVENT: {00E2909D-DAF8-47EE-9D00-0A86A2F0B203} 2015-04-18 15:22:03:483+0200 1 161 106 {5534AE2C-09AC-4541-AFB2-954EE1E1DC10} 203 80092004 AutomaticUpdatesWuApp Failure Content Download Error: Download failed.
2015-04-18 15:22:05:157 988 5d0 AU <<## SUBMITTED ## AU: Search for updates [CallId = {A00BF6EA-5B6B-43FA-8233-03D5241AF2C0}]
2015-04-18 15:22:05:158 988 7a0 Report CWERReporter::HandleEvents - WER report upload completed with status 0x8
2015-04-18 15:22:05:158 988 7a0 Report WER Report sent: 7.6.7601.18804 0x80092004(0) 534AE2C-09AC-4541-AFB2-954EE1E1DC10 Download 203 0 AutomaticUpdatesWuApp {9482F4B4-E343-43B6-B170-9A65BC822C77} 0
2015-04-18 15:22:05:158 988 7a0 Agent *************
2015-04-18 15:22:05:158 988 7a0 Agent ** START ** Agent: Finding updates [CallerId = AutomaticUpdates]
2015-04-18 15:22:05:158 988 7a0 Agent *********
2015-04-18 15:22:05:158 988 7a0 Agent * Online = No; Ignore download priority = No
2015-04-18 15:22:05:158 988 7a0 Agent * Criteria = "IsInstalled=0 and DeploymentAction='Installation' or IsPresent=1 and DeploymentAction='Uninstallation' or IsInstalled=1 and DeploymentAction='Installation' and RebootRequired=1 or IsInstalled=0 and DeploymentAction='Uninstallation' and RebootRequired=1"
2015-04-18 15:22:05:158 988 7a0 Agent * ServiceID = {9482F4B4-E343-43B6-B170-9A65BC822C77} Windows Update
2015-04-18 15:22:05:158 988 7a0 Agent * Search Scope = {Machine}
2015-04-18 15:22:05:799 988 7a0 Driver Matched driver to device USB\VID_1532&PID_002F&REV_0200&MI_00
2015-04-18 15:22:05:799 988 7a0 Driver Status: 0x180200a, ProblemNumber: 00000000
2015-04-18 15:22:20:157 988 5d0 AU Launched new AU client for directive 'Download Approval', session id = 0x1
2015-04-18 15:22:20:159 5752 114 Misc =========== Logging initialized (build: 7.6.7601.18804, tz: +0200) ===========
2015-04-18 15:22:20:159 5752 114 Misc = Process: C:\Windows\system32\wuauclt.exe
2015-04-18 15:22:20:159 5752 114 AUClnt Launched Client UI process
2015-04-18 15:22:20:169 5752 114 Misc =========== Logging initialized (build: 7.6.7601.18804, tz: +0200) ===========
2015-04-18 15:22:20:169 5752 114 Misc = Process: C:\Windows\system32\wuauclt.exe
2015-04-18 15:22:20:169 5752 114 Misc = Module: C:\Windows\system32\wucltux.dll
2015-04-18 15:22:20:169 5752 114 CltUI AU client got new directive = 'Download Approval', serviceId = {9482F4B4-E343-43B6-B170-9A65BC822C77}, return = 0
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {4F9AF231-5723-4A52-9293-015D4E5D4CDF}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {7363544A-FCB9-45C7-8BE3-0CC41D915671}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {A8F9826C-D3FB-479B-BC98-2019C447FB2A}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {A8752606-604C-4C58-A624-236B9A3F2FF7}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {40281AED-F5E1-4CF2-B933-247A7B569465}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {0A573204-A128-4B59-A9D7-2C94347B6D65}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {9E928520-32A2-45CB-8BE1-30524F9DCA22}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {85A1454B-5B3C-4419-8BE4-36D2E1A5EFEA}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {E51EEE53-3F0E-4036-9E9C-379EE8D5D2AE}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {80AEF0A5-249C-45A5-8DF1-3B8F6FE7098F}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {CDAA29E4-7DD7-49E5-8D96-50B907F1D999}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {0CA1E71F-4CDA-4F63-8775-5720A2185895}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {87D29669-5FE2-49D9-BDB7-5B36168988AD}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {B8581264-5B75-4DDD-964E-6B46D2847E10}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {B57B109C-58C6-410A-87AB-6EF7422826ED}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {951000A7-8631-414C-9FBD-70B1B30C2E6F}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {0CA5D635-1450-4BF9-98AD-88673C9CC19D}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {0338B2CB-EE95-4E8E-BB9C-9019B1AC3D5E}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {3990251B-0690-4BBC-B59F-904D0A912B36}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {98EC768A-B7B8-4DD8-92E1-98421C0D3552}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {5FC10007-56AC-4BB1-B7C3-9FA41B339359}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {E7F842D9-D61B-426E-9C39-A50AB9BAF4A0}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {F57D17F2-7D2C-446C-A4F2-AA3171B75B21}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {9696823F-09D7-4A41-B337-AC36DAF2CEF8}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {C4BEB100-1D6E-4EF6-A67B-BC0A051C1BE5}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {26D10780-DCCD-4833-8E9D-C12A6C3B0647}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {0B6F6573-1C43-4AC8-B1BC-C3A92B57814F}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {FEB4BA02-6F01-4954-AC77-CA4B5AB00AAE}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {F88DF62E-49EF-4120-80D3-CD6A4DCB3EE4}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {C937AD03-B5F3-45A8-ABD0-CDCFACAC59D3}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {D234890A-D622-4724-AF11-E97D130814B5}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {1C6A3D87-0EFD-45F4-AB18-ECD902AC6C00}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {BD1897E6-C7AE-4912-8C4A-F6986AC96597}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {258B6CA1-A8EC-4DFA-B619-FB8CECAC6E2E}.103 to search result
2015-04-18 15:22:54:616 988 7a0 Agent Update {E14D2017-DCA4-46F9-977A-44D991E82BBE}.200 is pruned out due to potential supersedence
2015-04-18 15:22:54:616 988 7a0 Agent Update {2C8C9F06-6E51-47B7-B5DA-9D9F148FE8F8}.202 is pruned out due to potential supersedence
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {27B17394-F511-4D83-BF5B-73F3E33AC77E}.200 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Added update {5534AE2C-09AC-4541-AFB2-954EE1E1DC10}.203 to search result
2015-04-18 15:22:54:616 988 7a0 Agent * Found 36 updates and 17 categories in search; evaluated appl. rules of 901 out of 1911 deployed entities
2015-04-18 15:22:54:616 988 7a0 Agent *********
2015-04-18 15:22:54:616 988 7a0 Agent ** END ** Agent: Finding updates [CallerId = AutomaticUpdates]
2015-04-18 15:22:54:616 988 7a0 Agent *************
2015-04-18 15:22:54:648 988 1530 AU >>## RESUMED ## AU: Search for updates [CallId = {A00BF6EA-5B6B-43FA-8233-03D5241AF2C0}]
2015-04-18 15:22:54:648 988 1530 AU # 36 updates detected
2015-04-18 15:22:54:650 988 1530 AU #########
2015-04-18 15:22:54:650 988 1530 AU ## END ## AU: Search for updates [CallId = {A00BF6EA-5B6B-43FA-8233-03D5241AF2C0}]
2015-04-18 15:22:54:650 988 1530 AU #############
2015-04-18 15:22:54:650 988 1530 AU No featured updates notifications to show
2015-04-18 15:22:54:650 988 1530 AU Successfully wrote event for AU health state:0
2015-04-18 15:22:54:651 988 1530 AU Successfully wrote event for AU health state:0
2015-04-18 15:22:54:653 988 9ac AU Getting featured update notifications. fIncludeDismissed = true
2015-04-18 15:22:54:653 988 9ac AU No featured updates available.
