Apparently "from [your] experience" the upgrade doesn't work at all. So what are you still doing here?
well some may work, but if they work doesn't mean that's the way to go bro
example: the old Intel Chipset Drivers WILL work
but the new Intel Chipset Drivers have the following fixes:
Features Added in Baseline 9.4.0.1022
ID
Description
1
Certified for Windows 8.1 support.
Added Intel Sensor Solution HWIDs duplicate for VEN_INT&DEV_33D1.
2
Added Intel Sensor Solution HWIDs duplicate for VEN_INT&DEV_33D1.
3
Added support for MUP specification 2.4.1.
Features Added in Baseline 9.4.0.1017
ID
Description
1
Updated Branding for devices 0c08, 8C56, 8C52, 8C54
Features Added in Baseline Production Version 9.4.0.1016
ID
Description
1
Fixed missing cat file lxptusb.cat, Ivytown.cat
Features Added in Baseline Production Version 9.4.0.1014
ID
Description
1
Updated Installer with new INFs for extract driver switch
2
Added device information for Intel sensor solution for Intel® 8 Series chipset family (previously code named Lynx Point-LP)
3
Fixed readme.txt
Features Added in Baseline Beta 9.4.0.1012
ID
Description
1
Added Crystal Well DID
2
Updated Branding for Intel® 8 Series chipset family devices (previously code named Lynx Point-LP)
Features Added in Baseline Beta 9.4.0.1010
ID
Description
1
Updated Readme with Windows 8 and Windows Server 2012 instructions
2
Updated all 4th Generation Intel® Core™ processor family and Intel® 8 Series chipset family devices with correct branding
3
Signed with HCK
Features Added in Baseline Alpha 9.4.0.1007
ID
Description
1
Updated Intel® 8 Series chipset family (previously code named Lynx Point-LP) Device IDs
Features Added in Baseline Alpha 9.4.0.1003
ID
Description
1
Updated 4th Generation Intel® Core™ processor family Devices
2
Added Intel Corporation Signing to all installation on Windows 8
Sorce:
http://downloadmirror.intel.com/20775/eng/ReleaseNotes_9.4.0.1026.htm
so just because something installs fine with no exclamation mark in the device manager doesn't mean it's 100% compatible with Windows 8
you can find driver updates for almost all drivers by either going to the notebook manufacturer or going to the chipset maker's native site. not that hard