Windows 8.1 Pro x64 UEFI very slow boot and shutdown

After reading all of these threads, I have found the issue seems to be two-fold.  A bad Qualcomm Atheros WIFI/Bluetooth driver and, in my case, an older Intel Management Engine.

Most problems were resolved by disabling Bluetooth and all problems were resolved when the Intel Management Engine was upgraded.  I documented the problem and the solution in this blog:  http://keyliner.blogspot.com/2014/01/windows-81-slow-to-shutdown-and-restart.html

This solution allows WIFI to stay enabled.  And hopefully, QualComm (aka: Dell-branded 1703 Bluetooth and Wireless card) will release an improved driver.   In any case, I have had success.

Have any of you tried allowing Windows to choose drivers to install...?  Considering you need a Internet connection to install windows 8... the default drivers should work fine...

I had the same problem as you, with other hardware driver conflicts after upgrading to windows 8.1

But on my last installation, I let windows decide... it installed the drivers automatically... only manually install drivers after doing all possible windows updates available... it will normally take between 2-14 days to do this...

If windows has already installed stable drivers... then all you are doing is forcing window to accept unstable drivers that slow your PC down.

After reading all of these threads, I have found the issue seems to be two-fold.  A bad Qualcomm Atheros WIFI/Bluetooth driver and, in my case, an older Intel Management Engine.

Most problems were resolved by disabling Bluetooth and all problems were resolved when the Intel Management Engine was upgraded.  I documented the problem and the solution in this blog:  http://keyliner.blogspot.com/2014/01/windows-81-slow-to-shutdown-and-restart.html

This solution allows WIFI to stay enabled.  And hopefully, QualComm (aka: Dell-branded 1703 Bluetooth and Wireless card) will release an improved driver.   In any case, I have had success.

Try cleaning out your cookies, cache, temporary system files, prefetch, bad registries & temporary internet files with CCleaner or Anvi System Cloud Booster. Maybe that will help. If it doesn't, have you changed the number of processors in msconfig? If you changed from 1 to e.g. 8, then your computer will slow down & instead it will use 256MB of RAM instead of what you have in your computer. One more thing, try scanning for viruses with Windows Defender, or Anvi Smart Defender. I hope this helps you.

• MrXtreme

Sorry, you can clean all you want and it will not stop the problem. Until you disable/replace the driver that is causing the problem you will be stuck with the problem. If you read through this long thread you will find the only solutions were to disable/update the drive causing the problem. The solution is very simple once you find the offending driver. Waiting for MS to provide you a solution is fruitless.

Try cleaning out your cookies, cache, temporary system files, prefetch, bad registries & temporary internet files with CCleaner or Anvi System Cloud Booster. Maybe that will help. If it doesn't, have you changed the number of processors in msconfig? If you changed from 1 to e.g. 8, then your computer will slow down & instead it will use 256MB of RAM instead of what you have in your computer. One more thing, try scanning for viruses with Windows Defender, or Anvi Smart Defender. I hope this helps you.

• MrXtreme

For other people, to find the driver who's making the conflict, try to do an "energy report".

Follow this tuto

http://www.wikihow.com/Run-an-Energy-Report-on-Windows-7

(this tutorial is for windows 7 but works in windows 8)

(to open the "energy report", find it in the "windows system 32 folder" and  paste it on your desktop, or you won't be able to open it)

Normally it will say that you have trouble with some driver

(For exemple, he told me that it was the bluetooth stuff who was in conflict)

Then uninstall and re-install with the latest driver of your products who's making conflict.