Windows 8.1 Pro x64 UEFI very slow boot and shutdown

Anonymous

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?

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228 answers

Anonymous

2013-10-21T08:31:50+00:00

Flashed BIOS, no improvement :(
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Anonymous

2013-10-21T02:46:12+00:00

Forgot to mentionned. I have a HP Pavillion DV 7 Intel(R) Core(TM) i7-3610QM CPU @ 2.30GHz with 8 G of RAM. Running Windows 8.1 Professionnel avec Media Center 64 bits .
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Anonymous

2013-10-21T02:42:24+00:00

Hi, I had the same issue. Today I reflashed my BIOS with the latest version (same version as before) to fix a USB 3.0 problem I had after upgrading to Windows 8.1. Both the USB and the slow boot problems are now gone. It may be Worth a try.
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Anonymous

2013-10-20T21:45:01+00:00

With windows 8 I don't have any problem. Now with windows 8.1 I have problems when I boot and shutdown the computer.
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Anonymous

2013-10-20T18:45:17+00:00

Same problem - 3 mins to shut down - constant disc activity - never had this with W8.0 - what a waste of time this upgrade is.
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