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Ever since I upgraded to Windows 8.1 via the in-store update my PC takes a good 3-4 minutes to boot!!! I am on a GA-X79-UD3 + i7-3820 + Samsung SSD 840 for system drive. I have updated all my drivers to Windows 8.1 compatible ones and still. I have checked via Samsung Magician and the drive is using AHCI mode on (Intel PCH) Sata 3 6Gb/s. I have tried restoring my UEFI to default settings and enabling Fast Boot but still?? On Windows 8 it would boot in 5 seconds....
EDIT: Have tried Safe Boot and Clean Boot, still same
EDIT2: Will any Microsoft guy chime in?
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
I may have found the solution to why my new ASUS laptop became extremely slow to shutdown after upgrading to Win 8.1. Took me 2 days of almost constant debug but found that disabling the Qualcomm Atheros Bluetooth driver dramatically reduced the shutdown and start up times to where they are now as fast or faster as they were with Win 8.
Speed reduction has remained after many start up and shutdown cycles.
As posted on Dell website I had the same problem and confirm that (at least on the Dell XPS 8700) the latest Qualcomm BT/WIFI device and/or drivers from Windows update is the trigger... and that uninstalling the Dell software (which requires disabling the devices beforehand) solves the performance issue.
Thanks again!
I tried to go back but apparently the security for 8.0 factory reset have been replaced by a base 8.1 and so I cannot, like you, go back. I did create a factory reset copy onto an SD card but am hesitant to use it as I may lose everything. Just have to keep on trying to overcome this. All I can now do is leave shutdown to take its own time and it is never less than 7 -8 minutes.
Thank you!!
This worked perfectly and reboot only took 6 seconds.
Been looking for a solution forever.
Tried resetting the system, reinstalling drivers, and flashing the bios over and over again but nothing worked.
Your answer was the ultimate solution.
I have the exact same type of Bluetooth device as you do.
Again, thank you very much.
I purchased Windows 8.1 Pro from Best Buy on Dec 26, 2013 and made the upgrade from Windows 7. My boot-up time from "off" to "sign-in" message is 15 minutes and 30 seconds. My shut down time is about 10 minutes. I installed the software on a Gateway FX6840. I have read the full string of suggestions. In my case using the "Charms" shutdown option turned the monitors off quickly, but the disk light and computer button light remained lit for 15 minutes or better. Using the "start" button (if that is correct name of the left hand lower icon) by right clicking and selecting shut down, the monitors (I have two monitors) remain lit with the "shutting down" message for 9 minutes and 35 seconds. I'll keep working at it; however, from what I can tell no one has identified the solution yet. I'll try other suggestions over the coming week and write another report. Once the system is booted up, the machine now flies. Hoping for a Microsoft update soon.
