Wait... I have 8.1 Pro as a fresh install on a mk5 with a documented list of drivers that work and don't work... I thought I posted it here a while back.
Oh.. nevermind... it was for my old mk3. I now have a mk5... so that doesn't answer any of your questions. lol.
http://www.toughbooktalk.com/viewtopic.php?f=3&t=1936
Windoze 8.1 on CF-19 MK4?
Re: Windoze 8.1 on CF-19 MK4?
*DOH*.... I know Canuckcam... 

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~Cell: (630)/300-8877~
~Owner - Toughbooktalk~
~Fully rugged Toughbook user since April 18th 2005~
~FZ-40ACAAHKM - Primary Toughbook / Workstation as of 7/29/22
~Win10 Pro (Win11 DG), Intel Core i5-1145G7 (up to 4.4GHz), vPro, 14.0" FHD Gloved Multi Touch, 16GB, 1TB Samsung SSD, Intel Wi-Fi 6, Bluetooth, 4G EM7690, GPS, Quad Pass (BIOS Selectable), Mic and Infrared 5MP Webcam, Standard Battery, TPM 2.0, Emissive Backlit Keyboard, Dual Batteries, USB A + HDMI + Serial X-PAK, Shoulder Strap, Flat~
~AT&T Business 1GB Fiber 1GB/1GB business static line~
~Gamber & Johnson Platinum Partner~
http://www.toughbooktalk.com
http://downloads.toughbooktalk.com/
http://www.rugged575.com - 300' UHF GMRS Radio Repeater
http://www.crete600.com - 310' UHF Linked GMRS Radio Repeater
~Emergency preparedness starts with reliable communication systems above all. Pretend the internet and cell phones didn’t exist, how will you communicate? If you’re interested in learning more, ask me!~
Re: Windoze 8.1 on CF-19 MK4?
<possible thread hijack>
That said though - how many levels of display brightness are you supposed to get? I swear I should have one more "dim" level before off. Right now the brightness buttons seem to trigger the Windows 8.1 system dimming, so I can't get that "I can barely see the screen" brightness level before the backlight turns off.
</possible thread hijack>
That said though - how many levels of display brightness are you supposed to get? I swear I should have one more "dim" level before off. Right now the brightness buttons seem to trigger the Windows 8.1 system dimming, so I can't get that "I can barely see the screen" brightness level before the backlight turns off.
</possible thread hijack>
Re: Windoze 8.1 on CF-19 MK4?
Not sure but it wasn't as many levels as it's supposed to!!! At the MINIMUM it's supposed to be ONE nit... Windows 8.1 blows 

~Rob - Vice President - Rugged Depot~
~Cell: (630)/300-8877~
~Owner - Toughbooktalk~
~Fully rugged Toughbook user since April 18th 2005~
~FZ-40ACAAHKM - Primary Toughbook / Workstation as of 7/29/22
~Win10 Pro (Win11 DG), Intel Core i5-1145G7 (up to 4.4GHz), vPro, 14.0" FHD Gloved Multi Touch, 16GB, 1TB Samsung SSD, Intel Wi-Fi 6, Bluetooth, 4G EM7690, GPS, Quad Pass (BIOS Selectable), Mic and Infrared 5MP Webcam, Standard Battery, TPM 2.0, Emissive Backlit Keyboard, Dual Batteries, USB A + HDMI + Serial X-PAK, Shoulder Strap, Flat~
~AT&T Business 1GB Fiber 1GB/1GB business static line~
~Gamber & Johnson Platinum Partner~
http://www.toughbooktalk.com
http://downloads.toughbooktalk.com/
http://www.rugged575.com - 300' UHF GMRS Radio Repeater
http://www.crete600.com - 310' UHF Linked GMRS Radio Repeater
~Emergency preparedness starts with reliable communication systems above all. Pretend the internet and cell phones didn’t exist, how will you communicate? If you’re interested in learning more, ask me!~
~Cell: (630)/300-8877~
~Owner - Toughbooktalk~
~Fully rugged Toughbook user since April 18th 2005~
~FZ-40ACAAHKM - Primary Toughbook / Workstation as of 7/29/22
~Win10 Pro (Win11 DG), Intel Core i5-1145G7 (up to 4.4GHz), vPro, 14.0" FHD Gloved Multi Touch, 16GB, 1TB Samsung SSD, Intel Wi-Fi 6, Bluetooth, 4G EM7690, GPS, Quad Pass (BIOS Selectable), Mic and Infrared 5MP Webcam, Standard Battery, TPM 2.0, Emissive Backlit Keyboard, Dual Batteries, USB A + HDMI + Serial X-PAK, Shoulder Strap, Flat~
~AT&T Business 1GB Fiber 1GB/1GB business static line~
~Gamber & Johnson Platinum Partner~
http://www.toughbooktalk.com
http://downloads.toughbooktalk.com/
http://www.rugged575.com - 300' UHF GMRS Radio Repeater
http://www.crete600.com - 310' UHF Linked GMRS Radio Repeater
~Emergency preparedness starts with reliable communication systems above all. Pretend the internet and cell phones didn’t exist, how will you communicate? If you’re interested in learning more, ask me!~
Re: Windoze 8.1 on CF-19 MK4?
I have 11 levels of backlight brightness including off....
... but the dimmest isn't dim enough!! grr...
... but the dimmest isn't dim enough!! grr...