After update was completed and during required reboot system hangs - monitor screen froze, while system powering down. Only way to close system was to hold the power button.
On power up - no signal warning received on monitor & cannot progress further.
Removed HD and checked disk for errors, virus & malware - no issues found.
Last line of windows update log - AU received handle event
Any suggestions on cause & how to resolve.
The 3 programs that were installed;
Definition Update for Windows Defender - KB915597
Windows Malicious Software Removal Tool x64 - January 2017 (KB890830)
January, 2017 Security Monthly Quality Rollup for Windows 7 for x64-based Systems (KB3212646)
Windows update log;
2017-01-22 14:19:19:694 1388 1e84 Agent * Updates to install = 3
2017-01-22 14:19:19:694 1388 1e84 Agent * Title = Definition Update for Windows Defender - KB915597 (Definition 1.235.809.0)
2017-01-22 14:19:19:694 1388 1e84 Agent * UpdateId = {E33D6038-6191-4A0B-A32A-9D1C742B811E}.200
2017-01-22 14:19:19:694 1388 1e84 Agent * Bundles 1 updates:
2017-01-22 14:19:19:694 1388 1e84 Agent * {5FFED523-E9E9-41FD-9797-2A76BBDCC29E}.200
2017-01-22 14:19:19:694 1388 1e84 Agent * Title = Windows Malicious Software Removal Tool x64 - January 2017 (KB890830)
2017-01-22 14:19:19:694 1388 1e84 Agent * UpdateId = {67856245-12E4-4B31-8E96-5FF01BC42741}.200
2017-01-22 14:19:19:694 1388 1e84 Agent * Bundles 1 updates:
2017-01-22 14:19:19:694 1388 1e84 Agent * {B277EF01-252A-4020-97A2-514AACF4E1F1}.200
2017-01-22 14:19:19:694 1388 1e84 Agent * Title = January, 2017 Security Monthly Quality Rollup for Windows 7 for x64-based Systems (KB3212646)
2017-01-22 14:19:19:694 1388 1e84 Agent * UpdateId = {7071D98C-3EA8-47DD-871E-8BC19EA05FF4}.202
2017-01-22 14:19:19:694 1388 1e84 Agent * Bundles 1 updates:
2017-01-22 14:19:19:694 1388 1e84 Agent * {8EFC711B-2687-4CDA-AB2B-A74D69241F45}.202
2017-01-22 14:19:24:358 1388 1ee4 Report REPORT EVENT: {45898627-8F51-42FB-86B5-3FF41CA22243} 2017-01-22 14:19:19:351-0600 1 162 101 {7071D98C-3EA8-47DD-871E-8BC19EA05FF4} 202 0 AutomaticUpdatesWuApp Success Content Download Download succeeded.
2017-01-22 14:19:53:484 1388 1e84 DnldMgr Preparing update for install, updateId = {5FFED523-E9E9-41FD-9797-2A76BBDCC29E}.200.
2017-01-22 14:19:54:732 1388 1e84 DnldMgr ExtractUpdateFiles: 0x00000000
2017-01-22 14:19:54:732 648 ea8 Misc =========== Logging initialized (build: 7.6.7601.23453, tz: -0600) ===========
2017-01-22 14:19:54:732 648 ea8 Misc = Process: C:\Windows\system32\wuauclt.exe
2017-01-22 14:19:54:732 648 ea8 Misc = Module: C:\Windows\system32\wuaueng.dll
2017-01-22 14:19:54:732 648 ea8 Handler :::::::::::::
2017-01-22 14:19:54:732 648 ea8 Handler :: START :: Handler: Command Line Install
2017-01-22 14:19:54:732 648 ea8 Handler :::::::::
2017-01-22 14:19:54:732 648 ea8 Handler : Updates to install = 1
2017-01-22 14:19:58:054 1388 1ee4 Report REPORT EVENT: {D5131DDE-F4DC-4500-8877-74CC65E9F69B} 2017-01-22 14:19:53:047-0600 1 181 101 {E33D6038-6191-4A0B-A32A-9D1C742B811E} 200 0 AutomaticUpdates Success Content Install Installation Started: Windows successfully
started the following update: Definition Update for Windows Defender - KB915597 (Definition 1.235.809.0)
2017-01-22 14:20:47:101 648 ea8 Handler : Command line install completed. Return code = 0x00000000, Result = Succeeded, Reboot required = false
2017-01-22 14:20:47:101 648 ea8 Handler :::::::::
2017-01-22 14:20:47:101 648 ea8 Handler :: END :: Handler: Command Line Install
2017-01-22 14:20:47:101 648 ea8 Handler :::::::::::::
2017-01-22 14:20:47:116 1388 1c10 AU >>## RESUMED ## AU: Installing update [UpdateId = {E33D6038-6191-4A0B-A32A-9D1C742B811E}, succeeded]
2017-01-22 14:20:47:132 1388 1e84 Agent LogHistory called. idUpdate={E33D6038-6191-4A0B-A32A-9D1C742B811E}.200, resultMapped=0, resultUnMapped=0
2017-01-22 14:20:47:210 1388 1e84 DnldMgr Preparing update for install, updateId = {B277EF01-252A-4020-97A2-514AACF4E1F1}.200.
2017-01-22 14:20:47:350 1388 1e84 DnldMgr ExtractUpdateFiles: 0x00000000
2017-01-22 14:20:47:350 648 ea8 Handler :::::::::::::
2017-01-22 14:20:47:350 648 ea8 Handler :: START :: Handler: Command Line Install
2017-01-22 14:20:47:350 648 ea8 Handler :::::::::
2017-01-22 14:20:47:350 648 ea8 Handler : Updates to install = 1
2017-01-22 14:20:52:140 1388 1ee4 Report REPORT EVENT: {46D46741-D1E0-4FCD-924D-CD7263BB4138} 2017-01-22 14:20:47:132-0600 1 183 101 {E33D6038-6191-4A0B-A32A-9D1C742B811E} 200 0 AutomaticUpdates Success Content Install Installation Successful: Windows successfully
installed the following update: Definition Update for Windows Defender - KB915597 (Definition 1.235.809.0)
2017-01-22 14:20:52:140 1388 1ee4 Report REPORT EVENT: {48EE4025-7FEA-4033-9828-7847EF48B9F1} 2017-01-22 14:20:47:210-0600 1 181 101 {67856245-12E4-4B31-8E96-5FF01BC42741} 200 0 AutomaticUpdates Success Content Install Installation Started: Windows successfully
started the following update: Windows Malicious Software Removal Tool x64 - January 2017 (KB890830)
2017-01-22 14:25:27:251 648 ea8 Handler : Command line install completed. Return code = 0x00000000, Result = Succeeded, Reboot required = false
2017-01-22 14:25:27:251 648 ea8 Handler :::::::::
2017-01-22 14:25:27:251 648 ea8 Handler :: END :: Handler: Command Line Install
2017-01-22 14:25:27:251 648 ea8 Handler :::::::::::::
2017-01-22 14:25:27:266 1388 1c10 AU >>## RESUMED ## AU: Installing update [UpdateId = {67856245-12E4-4B31-8E96-5FF01BC42741}, succeeded]
2017-01-22 14:25:27:266 1388 1e84 Agent LogHistory called. idUpdate={67856245-12E4-4B31-8E96-5FF01BC42741}.200, resultMapped=0, resultUnMapped=0
2017-01-22 14:25:27:297 1388 1e84 DnldMgr Preparing update for install, updateId = {8EFC711B-2687-4CDA-AB2B-A74D69241F45}.202.
2017-01-22 14:25:27:297 648 ea8 Handler :::::::::::::
2017-01-22 14:25:27:297 648 ea8 Handler :: START :: Handler: CBS Install
2017-01-22 14:25:27:297 648 ea8 Handler :::::::::
2017-01-22 14:25:27:313 648 ea8 Handler Starting install of CBS update 8EFC711B-2687-4CDA-AB2B-A74D69241F45
2017-01-22 14:25:27:469 648 ea8 Handler CBS package identity: Package_for_RollupFix~31bf3856ad364e35~amd64~~7601.23642.1.0
2017-01-22 14:25:27:469 648 ea8 Handler Installing express with source=C:\Windows\SoftwareDistribution\Download\9b5361e78b27a47c39b454101dbbde56, workingdir=C:\Windows\SoftwareDistribution\Download\9b5361e78b27a47c39b454101dbbde56
2017-01-22 14:25:32:274 1388 1ee4 Report REPORT EVENT: {3C51D1D4-FC59-446A-8525-F74FFA783636} 2017-01-22 14:25:27:266-0600 1 183 101 {67856245-12E4-4B31-8E96-5FF01BC42741} 200 0 AutomaticUpdates Success Content Install Installation Successful: Windows successfully
installed the following update: Windows Malicious Software Removal Tool x64 - January 2017 (KB890830)
2017-01-22 14:25:32:274 1388 1ee4 Report REPORT EVENT: {4433C4BA-1B95-41A4-9828-E83A25245DD2} 2017-01-22 14:25:27:297-0600 1 181 101 {7071D98C-3EA8-47DD-871E-8BC19EA05FF4} 202 0 AutomaticUpdates Success Content Install Installation Started: Windows successfully
started the following update: January, 2017 Security Monthly Quality Rollup for Windows 7 for x64-based Systems (KB3212646)
2017-01-22 14:25:52:476 648 ea8 Handler Requesting post-reboot reporting for package Package_for_RollupFix~31bf3856ad364e35~amd64~~7601.23642.1.0.
2017-01-22 14:25:52:476 648 ea8 Handler Completed install of CBS update with type=3, requiresReboot=1, installerError=0, hr=0x0
2017-01-22 14:25:52:476 648 ea8 Handler :::::::::
2017-01-22 14:25:52:476 648 ea8 Handler :: END :: Handler: CBS Install
2017-01-22 14:25:52:476 648 ea8 Handler :::::::::::::
2017-01-22 14:25:52:507 1388 1c10 AU >>## RESUMED ## AU: Installing update [UpdateId = {7071D98C-3EA8-47DD-871E-8BC19EA05FF4}, succeeded]
2017-01-22 14:25:52:507 1388 1e84 Agent LogHistory called. idUpdate={7071D98C-3EA8-47DD-871E-8BC19EA05FF4}.202, resultMapped=80242014, resultUnMapped=0
2017-01-22 14:25:52:538 1388 1e84 Agent *********
2017-01-22 14:25:52:538 1388 1e84 Agent ** END ** Agent: Installing updates [CallerId = AutomaticUpdates]
2017-01-22 14:25:52:538 1388 1c10 AU Install call completed.
2017-01-22 14:25:52:538 1388 1e84 Agent *************
2017-01-22 14:25:52:538 1388 1c10 AU # WARNING: Install call completed, reboot required = Yes, error = 0x00000000
2017-01-22 14:25:52:538 1388 1c10 AU #########
2017-01-22 14:25:52:538 1388 1c10 AU ## END ## AU: Installing updates [CallId = {7C067914-04DD-4EF2-BC5F-816C8AC000C4}]
2017-01-22 14:25:52:538 1388 1c10 AU #############
2017-01-22 14:25:52:538 1388 1c10 AU Install complete for all calls, reboot needed
2017-01-22 14:25:54:504 1388 1da8 AU UpdateDownloadProperties: 0 download(s) are still in progress.
2017-01-22 14:25:54:504 1388 1da8 AU Can not perform non-interactive scan if AU is interactive-only
2017-01-22 14:25:54:519 1388 1da8 AU Successfully wrote event for AU health state:0
2017-01-22 14:25:54:519 1388 1a50 AU AU received handle event