The auto-upload happens when the requirements are met and you are logged on with an MS account. If not, it does not happen and, as you verified, cannot be triggered manually. So you will have to save...

"doesn't save it automatically, even after you log in with the M$ account" - no, and that wouldn't be expected.
But you will possibly see the option to save it manually, when logged in with an MS...

I don't know, never tried that, please try it. Please right click c: and see if "manage bitlocker" is available in the context menu. There you will find "backup your recovery key".

Fine. Now keep your numerical recovery password in a safe place.

Again: feel free to use my tutorial, which allows Bitlocker on Win11 Home without any hardware restrictions: How to use Bitlocker on Windows 10 Home | Experts Exchange (experts-exchange.com)

The behavior you see is most probably, because the file "plan1.png" has access granted for the weak user. verify that. In that case, the behavior is normal and expected, since windows allows bypass...

Good song.

BL needs one key for the OS. You may even let the TPM provide the key, so you don't have to (if you like that). All other drives may be setup to auto-unlock.

No, you just need to turn UAC off the right way, not using the lever but secpol.msc (or a regfile) as shown here, followed by a restart: Enable or Disable User Account Control (UAC) in Windows |...

Søren, the reason it worked on Win7 is that you had UAC inactive and thus anything ran with full administrative powers, including explorer and its context menu. So with Win10, after turning off UAC...

In case you run Windows 10 home and device encryption is not supported, you may still use a trick to use Bitlocker. The only real requirement is to have a TPM module. See my article How to use...

You may run Bitlocker on Home using this method in my article:
How to use Bitlocker on Windows 10 Home | Experts Exchange

"Would it be a good idea to add firmware TPM to a W10 pc?" - Sure. 6th generation of intel processors and their mainboards usually have the option to enable Intel PTT (Intels fTPM) in the Bios, which...

You may download the ISO on another site. Please note that this is easier and still, the download comes from Microsoft servers:
TechBench by WZT (v4.1.1) (rg-adguard.net)

You don't need a bootable stick, since for upgrading, you cannot boot from it, only for new installations will a stick work when booted!
So save the ISO to the stick, double click it, start setup...

"If I take the offline upgrade route is all I need a Windows 10 iso?"
Yes. You need a backup anyway, so not only when you upgrade or update windows.

If you fear that the windows upgrade process is malicious, you shouldn't use windows or at least do all updates offline. Any windows update as well as feature upgrade (as in 1709->21H1) is possible...

Shawn, what if it doesn't turn off? Let me quote my question on How to disable Windows 10 Credential Guard? | Experts Exchange
----
On win10 1909, I tested credential guard (activated the feature...

Yes, this comes years later...
It should be pointed out, that the preboot-authentication assumes a US-english keyboard layout.
Example: you don't have a EN-US keyboard, but a german keyboard, and...

Hu!

Look, what I shared about funny numbers was at the time, MS praised win8's record high, that was in (see my link) 2014. I'll show you the pictures with numbers as well:
105884

It was a joke.
See, this thread should not even exist. The statistical data they supply is for the trash. They had unexplainable bumps in their graphs for xp and for win8.1 at the same time, by...

"Unless and until Microsoft gets its house in order it will continue to see its market share, now below 90% in the PC market, continue to slide" - you mean rise, continue to rise. See...

NM's statistics are not very good. Some time ago, their numbers showed a rise of xp users by +40% (relatively) to the month before. Go figure. I don't know who is supervising these statistics, but...

Cerberus, some years ago, I investigated about this matter and found this:...

Matthew, even if you asked Microsoft, you would get ten different answers if you asked ten different specialists. Licensing+MS=Horror. Ever since. I can only assure you, that in the EU, MS has lost...