E
ExR90
Scenario:
Dell Precision T5400 with Dual Xeon X5460 CPU's and 12 GB RAM full buffered RAM, Nvidia GTX 960 (EVGA) and 256GB Samsung EVO 850 SSD. System has A09 Bios revision, which is latest.
Windows 10 (x64) takes almost exactly 16.6 minutes (which happens to be about 1000 seconds strangely enough) to boot after post (BIOS, Not UEFI). After posting, the black screen with the Windows logo appears, and the spinning circle. It stays that way for 15-20 minutes, before then displaying the login screen.
This behavior only exists in Windows 10. I've tried a clean install, no change, and it even does the same lag when booting from Windows 10 install media (both DVD as well as USB media). Being RTM vs fully patched makes no difference. Using current drivers, no difference. I've tried it with ALL usb devices removed (even kb/mouse) and no difference.
If I turn ON Fast Boot, the problem stops UNLESS a reboot is performed (by me, or by windows update, etc). This makes sense because Fast Boot is effectively a form of Hibernate and it's not actually having to go through the full boot process again.
I've used Windows Performance Recorder and Analyzer to look at what's up, and the entirety of the lag is happening during the PreSession stage, which shows nothing of note going on during this time from a process standpoint. System and Idle are the only two processes going on during this time; which under System lives NTOSKERNEL and two child processes, ACPI.SYS and HAL.DLL; that's it. Memory and Disk are effectively idle during this period. From all various ways I look at the data, it's just idle for almost 1000 seconds before then completing the boot and otherwise the computer acts normally.
Screenshot is attached, and WPA file is available if someone from MS can make sense of it (I can put it on OneDrive or something).
Continue reading...
Dell Precision T5400 with Dual Xeon X5460 CPU's and 12 GB RAM full buffered RAM, Nvidia GTX 960 (EVGA) and 256GB Samsung EVO 850 SSD. System has A09 Bios revision, which is latest.
Windows 10 (x64) takes almost exactly 16.6 minutes (which happens to be about 1000 seconds strangely enough) to boot after post (BIOS, Not UEFI). After posting, the black screen with the Windows logo appears, and the spinning circle. It stays that way for 15-20 minutes, before then displaying the login screen.
This behavior only exists in Windows 10. I've tried a clean install, no change, and it even does the same lag when booting from Windows 10 install media (both DVD as well as USB media). Being RTM vs fully patched makes no difference. Using current drivers, no difference. I've tried it with ALL usb devices removed (even kb/mouse) and no difference.
If I turn ON Fast Boot, the problem stops UNLESS a reboot is performed (by me, or by windows update, etc). This makes sense because Fast Boot is effectively a form of Hibernate and it's not actually having to go through the full boot process again.
I've used Windows Performance Recorder and Analyzer to look at what's up, and the entirety of the lag is happening during the PreSession stage, which shows nothing of note going on during this time from a process standpoint. System and Idle are the only two processes going on during this time; which under System lives NTOSKERNEL and two child processes, ACPI.SYS and HAL.DLL; that's it. Memory and Disk are effectively idle during this period. From all various ways I look at the data, it's just idle for almost 1000 seconds before then completing the boot and otherwise the computer acts normally.
Screenshot is attached, and WPA file is available if someone from MS can make sense of it (I can put it on OneDrive or something).
Continue reading...
