I did see that

That was so nice of you to do that

I couldn't reach that screen again

With the I don't have internet option

But at the enter your account details screen I hit the airplane mode button and pressed the back button that otherwise did nothing and that worked!

Oh wow haha 3 security questions about stuff people could probably find out about me if they tried. Bad!

City you were born... how many totally public forms have I entered that info into?!!

What I was doing got interrupted to "install an important BIOS update"

Suspicious

But doesn't your system have UEFI, not BIOS? :)

@Zanna I don't know the surrounding details so I don't know.

But if it's software that the manufacturer installed then this is plausible.

@Zanna You could answer them in creative and unusual ways.

But yes, that's one of the big ways celebrities have gotten hacked, is that people were able to look up the answers to their security questions. That's one of the the things that popularized two-factor authentication for Internet services (usually called something like "two-step verification").

@EliahKagan of course! But that's what it said haha

If there really is a firmware update from the manufacturer then I think it is probably best to take it.

Also, since you intend to keep the Windows system for a while, I recommend you update it fully.

That you install security updates, I mean.

If there is a newer version of Windows 10 than the one you have, but the one you have is still getting security updates, then you needn't yet move to the newer version (though you could).

@EliahKagan I always do that with these silly security questions, but I prefer it when they let you write your own question, then I know I'll actually remember my crazy answers

When you go to check for updates, Windows should tell you if you need to move to a newer version of Windows 10 to continue getting them.

@EliahKagan ok, I will

You can install all available updates but then there are more when you go to do so again. I recommend repeating the process until there are none available.

I shrank the partition to 53GB in Windows. Then I was able to install Lubuntu

Now let's see if it boots!

(In theory this sort of thing could happen with APT -- an upgrade to apt causes upgrades that were previously not shown to be available -- but it's rare.)

@Zanna Nice!

Windows booted, so I'm updating

Do you mean, it booted when you tried to boot Lubuntu?

Yeah

Hmm

Might have been upset by something I did. I'll try it again. Otherwise some boot repair business

When was this claim about mini.iso not supporting UEFI true?

I've installed from mini.iso on UEFI systems and it used a GPT disk, created and efi partition, and so forth. I'm pretty sure it wasn't accidentally installing in BIOS compatibility mode.

Yeah I'd be very surprised if that was still true

:( couldn't fix it yet

I got it :D :D

@EliahKagan thank you so much for your help

Going out to attempt multiple Monday-Friday wrestling-with-bureaucracy tasks

@Zanna I don't think I really helped with the Windows 10 thing, but you're welcome.

I occurred to me, too late to help, that you have Skype (at least you've mentioned in the past that you've used it with your students) and that Windows 10's setup utility will accept a Skype account.

Perhaps it's best I didn't say it though since you don't seem to want to have an online account linked to that Windows system.

I have Skype and a Microsoft account etc. and a Windows 10 system, but I use a local account on the Windows 10 system. So I'd be suggesting something I wouldn't do myself even if I could... :)

Anyway, I don't know if it was that case back then... but a while ago we discussed trying to test customized live ISOs with UEFI and Secure Boot to see if the existing instructions for "live CD customization" need to be brought up to date. Some of those messages can be found through this coarse search.

When I set up my VMware virtual machine or Windows 10, it gave me the option to enable Secure Boot... which I haven't had before when creating virtual machines for other operating systems. (The virtual hardware setup is made faster by picking defaults for the user based on what OS the user intends to run.) I hadn't thought to try this before.

So after I said yes to Secure Boot ("I said yes to Secure Boot" isn't something I expected to say anytime soon) and installed Windows 10, I shrunk the Windows partition in Windows using diskmgmt.msc, then I booted the minimal CD (mini.iso) for Ubuntu 19.10 and installed it for dual-boot. In tasksel I picked Lubuntu. The system works well (since I installed the open-vm-tools-desktop package). It boots in UEFI mode, via grub-efi (which has an option to chain-load to the Windows boot loader).

@EliahKagan (Though one can install using an online account and then change it afterwards.)