disable fast start up

P.S. if you want an "old" legacy panel, you should turn to "choose when to turn off the display", and "change advanced power settings" there. Perfectly logically connected. And they never forget to put the priority features to the front.

in the "start" search for "power & sleep settings". There go to "additional power settings"(the "new" legacy power panel), go to "choose what the power buttons do on the left", click "check settings what are currently unavailable"(admin mode), and do what you want with startup.

And remember, Winows 10 is the most simple, most consistent and logically built user friendly modern operation system! (no joke )

Hi Andy,  Thanks for your reply and suggestion. This is the path I normally take and that's where I expected the option to either tick or untick the fast start feature. However in my Dell T7500 and HP Z1 the option is not there. Dell T7500HP Z1

There have to be something with ACPI. It may be in compatibility mode, or the necessary drivers may be not installed (usually just the Intel INF pack).

I do not remember exactly, but the advanced power settings may be disabled in the domain by administrators.

server versions of windows had also this feature disabled in the past, but I am not sure how it is today. I've also seen such behaviour with Windows 7 and dual Xeon with C600 chipset; it was fixed with bios and os updates. Do not know why that happen with DP, probably ACPI again.

check this if it helps https://serverfault.com/questions/793295/how-to-disable-fast-startup-using-a-group-policy

however, I feel that it is either admin, or ACPI

Hi @tomoz,

Does Win10 on your T7500 have the latest updates?  (or)  Are your PC's on the same level of Win10, 21H1 for example?

Hi guys,  thank to all for your suggestions - all my pc are fully updated and while I noticed this behaviour on a Dell and HP, obviously that is hardware, not software difference. At the end none of the easy suggestions helped and there is no group policy that would be relevant for these pc. I did however came across a solution and recommendation from someone else. Noticing that upon installing Terabyte Imaging, that software offered to disable fast startup given the danger of corrupting images, I used one of their other tools BIBM to boot up these two pc in recovery mode and checking on properties there I could confirm that Fast startup was in fact disabled / not enabled.  Why the Dells behave differently at my own place I don't know but someone suggested that if you have disabled hibernation in windows, then you won't even see the option of fast startup. So possibly that was the difference but I will need to do some more testing when I have more time. Happy New Year everyone

Disabling hibernation does indeed remove the fast startup option. Fast Startup combines elements of a cold shutdown and the hibernate feature, so hibernation would be required to use it.