Boot Camp: Thunderbolt devices not recognized after Windows 8 upgrade

Boot Camp: Thunderbolt devices not recognized after Windows 8 upgradeThunderbolt devices are not recognized when you start up in Windows 8 after upgrading from Windows 7 to Windows 8.

">ACUtil.setPOD('us~en'); var articleId = "TS4531"; var ACStaticText = { 'more': '…more', 'less': 'less' };KmLoader.akamaiUrl = 'http://km.support.apple.com';//function sendRead()var locale = 'en_US';Event.observe(window, 'load', function() {ACHistory.addKbView('TS4531', 'Boot Camp: Thunderbolt devices not recognized after Windows 8 upgrade', 'en_US', 'unknown');ACUtil.getMultipleOffers('PL339,PP38', 'TROUBLESHOOTING_ARTICLES', 'en_US', 'false');ACUtil.reportView('TS4531', 'en_US');// Apple Instant Feed statistics code if(enableAppleInstant == "yes"){var store = new Persist.Store('FeedStats');if (store.get('resultActivity')=='true'){var time = new Date();// Fix for /*setReadTimer = setTimeout(function(){var feedStats = new ACFeedStatistics();feedStats.updateRead('TS4531', store.get('position'));store.remove('TS4531');store.remove('position');}, 3000);*///store.set('TS4531', time.getTime());store.set('timeStart', time.getTime());}} });Event.observe(window, 'beforeunload', function(){// Apple Instant Feed statistics code if(enableAppleInstant == "yes"){ var store = new Persist.Store('FeedStats'); if (store.get('resultActivity')=='true' && store.get('timeStart') !== null){ var time = new Date();//var timeDiff = time.getTime() - store.get('TS4531');var timeDiff = time.getTime() - store.get('timeStart');var timeSpent = Math.floor(timeDiff/1000);var feedStats = new ACFeedStatistics();// Fix for if (timeDiff Boot Camp: Thunderbolt devices not recognized after Windows 8 upgrade Products Affected

Boot Camp, Windows 8

Symptoms

Thunderbolt devices are not recognized when you start up in Windows 8 after upgrading from Windows 7 to Windows 8.

Resolution

Disable the Windows 8 Fast Boot feature to allow Thunderbolt devices to be recognized.

Start up in Windows. Position your mouse cursor in the upper-right or lower-right corner of your screen to activate the Charms bar. Click on the Settings icon. Click Control Panel. Choose "Hardware and Sound." Under Power Options, choose "Change what the power buttons do." Under "Shutdown settings," remove the checkmark from "Turn on fast startup." 
Click on Save changes. Restart your computer. After restarting, devices connected to Thunderbolt ports should be recognized.

 

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