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From your description, if the BIOS is fast with one OS and slow with another, it is not the BIOS.
If your computer is recent enough, it probably doesn't even has a BIOS but a UEFI. In a UEFI, to the extend of my knowledge, the OS has partial control over the boot process. The OS can install things in the UEFI, like low level drivers, before booting.
When you reinstalled Windows 10 did you reboot several times or was that the time of a single first boot? Any OS that supports boot speedup needs to boot more than once because the first boot is used for hardware detection and, hence, is slower. The second boot might be used to install low level drivers for the hardware detected in the first boot. The third boot should already be fast because every piece of hardware is already catalogued and its software installed.
Also, did you change the boot drive or completely erased it before reinstalling Windows 10? It might be that Windows 11 UEFI or the boot loader were detected by the Windows 10 install as being more recent and were not overridden. UEFI stuff is stored in a partition in your drive that is usually hidden.
I had this problem when trying Windows 8 and then reverting back to Windows 7. Even with only one Windows 8 install, which forces to have a Windows 8 boot loader as the main boot loader, booting any Windows 7 install was slower (I had multiboot with several Windows 7 installations on the same machine). It might be microsoft's dirty tactics to force people to upgrade by saying "See, your computer is much faster with the new Windows version". If you change the drive by a clean one, or wipe your current one, before installing Windows 10 is a sure way to ensure that the Windows 10 boot loader and UEFI part are installed.
If microsoft is indeed using said tactics and is sending updates of the boot loader to everyone that is using Windows 10, which would explain what "She" has, your ...(choose appropriate word to describe a bad situation)...
FYI: Windows 7 was my last interaction with microsoft. Never used any of their products again.
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ElectronProgrammer wrote: Windows 7 was my last interaction with microsoft. Never used any of their products again.
Got it. You haven't had first-hand experience with MS products since Windows 7.
Aside: How good does that religion look on your resume?
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Not a religion. I didn't like Windows 8 and my machine does not run Windows 10 (as I mentioned in other posts).
I do not have that in my Curriculum because it is irrelevant. My jobs are mostly in Research and I work mostly with hardware, with or without an embedded Linux based OS, so what OS I use for development is irrelevant as long as others can rebuild the project in their machines and works the same in the target hardware.
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Interesting! Thanks for sharing. My machine is just over a year old and is UEFI. By the way, when I change operating systems I use Macrium images, except for the very first time the OS is installed, then I do a clean install. I never upgrade an OS, like going Win 11 from 10.
Get me coffee and no one gets hurt!
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If your Macrium images are full disk, I do not know what else could be the problem.
If they are only of the Windows partition, your are probably not replacing the UEFI stuf I mentioned earlier.
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I always do full disk images (all partitions).
Get me coffee and no one gets hurt!
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A little too special-interest for the newsletter, but it looked interesting: CadHub[^] Quote: Designs backed by reliable, easy-to-write code open a world of new workflows and collaboration. We're building a place where you can build that future.
Create your CAD object in code (JavaScript, Python, or C++-like), and presumably export to some usable format.
EDIT: fixed my spelling
TTFN - Kent
modified 18-Oct-21 14:03pm.
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... completely lame website ... none of the links are patent ... etc ...
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On the other hand... most websites don't result in a good 3D print. 
I have lived with several Zen masters - all of them were cats.
His last invention was an evil Lasagna. It didn't kill anyone, and it actually tasted pretty good.
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I recently utilized tinkerCAD for some simple work I found it quite useful after giving up on FreeCAD
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Alibre Atom is also a good choice over FreeCAD, although it costs ~150 or a bit more for a perpetual license. FreeCAD worked, but Alibre was far closer to the ease of use of SolidWorks. Others have mentioned Fusion 360, but I refuse to pay a monthly fee that will soon surpass that $150.
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Fusion360 hobbyist license is free. You have to renew it every year and it's a chore to figure out how. Has all the features I need except the ability to print full size plans on anything other than 8.5x11 or A4.
For 3D printing it's fantastic. No full size plans required!
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While using OpenSCAD I do regularly think "hmm, maybe I should just write something spitting out the SCAD files from C# code so I can get decent syntax and libraries". Luckily I am too busy to start such a project.
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I'm happy to announce that the http module in Python 3.9 now includes the HTTP 418 "I'm a Teapot" code.
For those wondering what I'm talking about, see RFC 7168: The Hyper Text Coffee Pot Control Protocol for Tea Efflux Appliances (HTCPCP-TEA)
Quote: 2.3.3. 418 I'm a Teapot
TEA-capable pots that are not provisioned to brew coffee may return
either a status code of 503, indicating temporary unavailability of
coffee, or a code of 418 as defined in the base HTCPCP specification
to denote a more permanent indication that the pot is a teapot.
Yeah, it's going to be one of those weeks.
cheers
Chris Maunder
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Chris Maunder wrote: a status code of 503, indicating temporary unavailability of coffee
Don't even think those word together as a sentence! 
"I have no idea what I did, but I'm taking full credit for it." - ThisOldTony
"Common sense is so rare these days, it should be classified as a super power" - Random T-shirt
AntiTwitter: @DalekDave is now a follower!
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Pfffft! Call me when it finally implements RFC1149 - or preferably RFC2549. 
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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That's Level 1 of the OSI levels. HTTP is what, level 4?
Freedom is the freedom to say that two plus two make four. If that is granted, all else follows.
-- 6079 Smith W.
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Certainly more like Presentation (6) or Application (7). The encoding - the specific use of angle brackets, character entities and that sort of stuff - is a Presentation issue. That is how to represent an abstract information structure that might equally be represented in other ways (such as a DOM tree). The syntax and semantics of that abstract part of HTML belongs in Application.
Even though many people (usually with rather shallow knowledge of the OSI model - but that covers 95+ % of all software developers today) try to place various elements of IP based protocols into one single OSI layer, it usually can't be done properly, as seen from an ISO model point of view. In plain words: IP protocols are a mess in regard to clean layering.
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Which do you mean, OSI or ISO?
The difficult we do right away...
...the impossible takes slightly longer.
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OSI is a standard family from ISO (in cooperation with ITU-T), so I guess the answer is: Both.
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Having been out of the developer world through the era when HTCPC was created, I am made very curious: was this created to illustrate the OSI model?
Thanks for the lessons; I've always believed that shared development relied entirely on communication of purpose and methods. There is nothing so satisfyingly helpful as a well-made requirements doc.
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I'm afraid that you can forget any hope of learning anything from OSI. It was thrown away, all its qualities were ditched. OSI is just for old time dreamers fantasising about how the world could have been. If the world wasn't different, of course ...
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