February 20, 201412 yr Recently I've been having problems with the boot of Windows 8.1. Here's some information of the boot trace: As you can see the PreSMSS phase takes way too long - over 96 seconds - and the ExplorerInit phase 17 seconds which I think isn't normal since my system used to take 30 seconds or less to completely boot. Also the duration of the PostExplorerPeriod and TraceTail phases are set to -1. Is this some kind of bug? Can somebody please help me? PS: I attached the .xml file with all the information of the boot trace. summary_boot.xml
February 20, 201412 yr the values are -1 if you stopped the trace too early.PreSMSS is stating all boot relevant drivers. In your case this is slow:<pnpObject name="PCI\VEN_8086+DEV_1E03+SUBSYS_C652144D+REV_04\3+11583659+0+FA" type="Device" activity="Start" startTime="217" endTime="90419" duration="90202" prePendTime="90202"/>VEN_8086+DEV_1E03 = Intel SATA controller. Update the driver, please.
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