Assuming the windows is bootable, if you notice something off, here's how to boot into safe mode from this angle.

Regarding booting, in most cases you can find a manual for the laptop/motherboard which describes the different keyboard shortcuts used within the bios. The efi bootorder can be configured from within linux with a program named efivars, for Windows the situation is muddier. So booting from other drives is possible, but will take some time.

Regarding drivers, I have only needed drivers for Windows with my Macbook. Windows 10 automatically fetches drivers from microsoft, so you don't need to use manufacturer's bloated images. In any case, if you were to ever come upon an inaccessible interface for example with booting, you can also use be my eyes for those extremely rare cases.

@80 excellent way of putting it. at least the main thing is the more I follow up on this at least I'll have something to add. but as of now I'm just taking down notes. lol good thing in a way at least that's some what good on my side.

The thing is, most issues you are bringing up here are not Windows issues. How can MS fix Bios not being accessible and laptop manufacturers customising their keyboards? This being said, I have never in my life seen an inaccessible Windows setup process. Even if, let's say you had a laptop which is bloated and inaccessible to setup, there is nothing preventing you from just booting up a new windows installation and removing all that. Now you might say you cannot accessibly boot from another media, and while this can be true it depends. For most laptops, you can just google a key which will bring you into the boot menu, and from then somebody can just tell you how many times you should press down arrow until you get to your USB, DVD or whatever you want to use and press enter. Also, this is just once, and from that point you can memorise it and do a reinstall whenever you want. Windows does not work the same as mac and never will, however we must differentiate between Windows issues and bios. Bios is not something you will access every day, and if you really hate manufacturers modifying the function keys behaviour all you need to do is read one review for a laptop you plan to buy and you can get to know if this setting is changed in bios or not, either that or just read the manual online. On my laptop for example, I can switch this behaviour by just pressing function plus escape and it's pretty awesome. That being said, this is again not anything Microsoft can do about.

Ah, but macOS has an accessible way to choose your startup disk, and Windows still doesn't. Microsoft needs to add Narrator support to the advanced startup options menu. Also, let's not forget that macOS has a system wide spell checker that works in any edit box. I love that!

Yet again someone who don't know what he is talking about. If there are no advantages to the mac, then please tell me how you choose your start disk in Windows in an accessible way with speech like you can do on the mac. I am talking about the Mac OS and Windows OS, not Linux. Please also answer my other questions above regarding the guarantee of buying a laptop which is accessible out of the box.
Then, how do I navigate a website heading by heading or link by link just with one hand by using the arrow keys, in Windows? How do I make alt tab only switch between the programs, and not all the open windows inside the programs, like how it works on my Mac?
How do I make a Windows run so stable that the computer don't need to be restarted for three months like my Mac?
What alternatives can I use for Audio Hijack, Garage band and Logic which are just as accessible and easy to use as those programs? No, Reaper is not the answer since it is complicated unlike Logic and Garageband.
How do I make VLC Player fully accessible in Windows?
How do I send sms messages from a Windows computer through my iPhone, like I can do on my Mac?
How do I synchronise all my contacts with my phone to a Windows computer, without using Outlook, like I can do on my Mac?
For those who are blind and for some reason only can use one hand: How do they make sticky keys accessible with screenreaders so it announce the keys they press, if they are locked and released? That works with Voiceover. I have not seen that work with screenreaders in Windows, but I might have missed something which makes it accessible.
Again, you clearly don't know what you are talking about, but try to argument with bad comments, just like you know everything. So, maybe you should get some  experience with a Mac yourself before posting. If you have a year of experience, then you should explain yourself better. Write your own experiences instead of posting links with facts or bad reviews etc. as you usually do, when you are in the "bad argument mood." Everyone can search on Google and post facts and bad reviews. But your own experience is totally different. People are starting to take all your posts for absolutely nothing, because you constantly argument the hell out of everything in negative ways, without actually having your own experience. Instead of just skip the topics where you don't have anything good to say, you spend your time on constantly posting negative and bad comments, and you do it like you know everything in the world, which you clearly don't. If you continue to do that, then people will simply skip your posts in the future, which I do most of the time, because I choose to focus on the positive things in the world.
So, I'll recommend you to shut up and skip this topic, or answer all my questions I have asked in this topic, and tell about your experiences with a Mac computer and how long time you have used it to proof that there are actually 0 advantages of using a Mac computer.

@Jack: The store you are talking about, are they selling computers world wide? I need a computer with a danish keyboard, which is different from the English keyboard.

@SLJ I will, like last time, actually take the time to address some of your concerns. At least the ones that I have a definitive for.

ObjPad for NVDA. Yes, it's an addon, that makes the arrow keys behave in different modes depending on what mode you have selected. You have normal mode, object mode which lets you  flat-review with just the arrow keys which, in a way, it almost exactly like voiceover, then you have the mode we all want to hear about, web mode. Up and down arrow keys change navigation level, left and right actually move you by that navigation level. You have the ability to change the mode select key command, which is good as the initial mode select gesture (ctrl+nvda+tab) isn't exactly one-hand friendly.
Audio Hijack is where the mac will definitely shine, however I'd say if you already have a mac, i.e I personally wouldn't impulse-buy a mac just for Audio Hijack, just as when funds are tight I would rather take the time to learn Reaper than do Garageband. Matter of fact the transition from Goldwave to Garageband was initially confusing for me because the simplicity of keyboard gestures wasn't there, i.e a plain windows with everything nicely laid out in menus or accessible via keyboard shortcuts. I eventually got used to it just fine, but your situation involving it being confusing to transition from Garageband to REaper is exactly the same. You got used to one thing, and aren't really up to learning another.

Ok, have you ever used a windows machine with an ssd? That's not rhetorical, that's an honest question, as hdd's in general are rather unstable. Before I upgraded my hd on the mac, I was forced to run my virtual machine on the seagate drive I had. No, it wasn't a backup plus slim, it was a repurposed brand new desktop sshd (hdd with a small amount of nandflash) that I had put into a USB Sata enclosure. So it wasn't 5400rpm, it clearly was 7200, so I thought it would be fine. It absolutely wasn't. Virtual machine would crash on the daily, you were lucky if it even ran fast for more than a day, and I was constricted to Windows XP just because of the hdd, windows 10 was an absolute trainwreck on there. Never mind the fact my machine has 8gb ram and the 2.7ghz intel core i5 (don't ask, it was the highest mbp2015 they offered me at the store and I couldn't go higher.) But 8gb of ram is pretty high-end anyhow.
Once I got my Transcend Jetdrive 820 internal ssd which upgraded my mac from 128gb to 480gb, I was able to store my virtual machines on the ssd and they have been able to run for several days at a time. And windows 10 even runs decently well on there too, though XP is still my energy-efficient choice if I'm running off battery. So if a virtual machine can run well on an hdd, then Windows on its own definitely can. Now, here's what's having me hold on to the mac. I haven't found a windows machine that has a pciE gen3x2 bus for the hard drive. Which again proves my point that it's the software i have a problem with, the internal hardware is fantastic.

@roelvdwal, I would be interested to try a mac. Amusingly enough, I was in my parents' local Apple shop yesterday, looking at Iphone bluetooth keyboards and trying to get a gryphon survivor case for my Iphone 8 (both of which I failed at), and I did actually hit command f5 on the mac which brought up voiceover, ----- the only problem was the speakers on the demo model in the shop were turned up max so  made everybody jump, and then appologised profusely because I couldn't turn the thing off .

I'm afraid for me trying a Mac is in the same category as trying an android device with talkback, its something   I would be vaguely curious about  and would do if I have the opportunity, but not something I really want to invest in seriously without some practical reason to do so beyond curiosity.

I will also admit that as far as moving from Xp goes, I was down right wrong about what problemms Windows 10 had, particularly surrounding interface, access to the hd and backwards compatibility.

Well the more I use noscript the more it tries to block clickjacking and other malicious injections. Actually, technically speaking, Wannacry shook the world so much that even Windows XXP got the security update patch. Granted, it just so happened that Windows XP Embedded for Point of Sale was still being supported, so I guess they figured it wasn't much work to push it out to everyone.

I'd not disagree that security isn't an issue, which is another reason I wanted to move off Xp in fifteen (which was honestly far later than I should've done), however my problem with the security debate is again security is often the be all and end all to many computer arguments. At the time, one of the major problems with the discussion of Windows 10, is everyone was so busy saying "well xp is not secure, windows ten is updated, you must be secure etc etc", is that nobody actually mentioned that with the exception of Dos programs and the BGT games, Windows 10 would also do all the things that Xp did anyway, plus a lot of other things such as work with modern browsers

\One of the issues with "security" is that whenever it is mentioned, you get the cyber equivalent of hardcore survivalist nutters telling you how insicure everything is and how unless you use such and such a program and four different anti viruses, and remove everything from your hd and reinstall each month you're going to be flooded with ransom ware .

Eh...  macs are more or less blindie status items at this point.  Everything that can be done on them can be done in Windows/Linux.  With the exception of ProTools/logic, you can probably get your shit done and in some cases get it done faster on other platforms. The windows out of the box experience is solid at this point, Cortana will even ask you if you want narrator switched on if the device your setting up windows on has a microphone.
All the momentum and potential apple had with voice over has been long ago pissed up the wall in the infuriating pursuit of becoming iOS like.
Normally the default response to the question of "Who uses a mac?" is anyone who works in the field of content creation but apple seem determined to shit on these users (who were their bread and butter) at every single turn.
It's not even like the hardware is especially good any more, Apple does not want to sell you a piece of gear that you'll still want to use 5 years down the line, they want you to be pissed off with the thing you spent thousands on a couple of years ago, this will insure that you're obediently salivating over the new shiny.
They have been caught doing this to their phones and the utter garbage they're spewing in the courts to defend themselves is laughable at best.
The new t2 chip is slowly making it's way into  all of the mac line and although apple will tell you they're doing this for...
S E C U R I T Y, couple this move with the fact that they are fighting against your right to repair and a different picture gets painted.
Apple seem to be set on the course of  shafting their potentially dwindling consumer base as hard and as much as possible and you're going to get developers who will flat out not want to develop for mac OS/iOS purely because of this.
It is a sad state of affairs honestly.

@SLJ, So just because I make a statement that's a fact I don't know what I'm talking about? Right, like that makes any sense. The only reason you can select your startup disk in Mac is because they use a custom firmware that nicely integrates with Mac OS. Windows does not require such a custom firmware. That is literally the only advantage I can see in Mac -- you can select your startup disk. Sorry, no big advantage, my computer firmware has that in its boot manager already, and I've figured out the layout already. And I can do that in Linux with grub-reboot (or efibootmgr). Please stop claiming that I don't know what I'm talking about without actual evidence to prove your point.