This feeble-minded Wizard has started a folder on you and your Thread, which I should have done last year when I said
...and I will provide an alternative method, I'll only need to know whether you wish to keep Windows or ditch it.
So I will work on the fly, but I may not have a more complete blow-by-blow until my tomorrow, after I have swung into my Parrot and run a few checks.
That being said, I am going to outline where I am (now) headed, you can read it and see what you think.
WIZARD'S IMMEDIATE BEST OPTION - FOOD FOR THOUGHT
I would think that the best goal to head for, at the moment, is to have a Grub Menu with Parrot at the top of it, and the default is it boots into it, and Windows appearing as an entry which will likely read as something like
Windows Boot Manager
If we get that set up, you can mine Windows 11 for any data you wish to save and then we can show you how to nuke it - blow it away.
In order to do that, we want to be able to first boot into a part of Parrot from startup and do the voodoo which will generate the ability to start working towards that goal.
It will involve getting a Grub Menu with Parrot listed on it, and in particular, using a line saying something like
Advanced Options (Parrot)
If the Grub Menu does not appear at startup, you should be able to force one to show by tapping the Escape key (on a UEFI computer... it is the Right Shift key for MBR/Legacy systems).
I'll grab a beer and a smoke and dive into Parrot and check some stuff.
You need to be sure you are bright-eyed and bushy-tailed before engaging in these exercises, eg after a good night's sleep.
Back soon.
Wizard