[Solved] How to? Win10 from unbootable PC to New PC

Hi guys!
Hope you can help (and it's ok to me if you will also laugh at how easy the answer is). ;-)
Do you know of any image backup software that can image an offline Windows from a usb attached disk?
Searched the web for a good while and surprisingly nothing useful came up.

Here is the (I'd believe not so unusual) situation:
Pc won't boot anymore (hardware problem, either power supply or mb, evil beeps before even posting).
Bought myself a refurbished pc with pretty similar specs but not quite the same.
New machine will come with a licensed win10 ready to use, but ideally I would like to:
a) Erase its disk (possibly keeping the win license, may come handy in the near future), but mainly
b) Go back to using my dear old (and nicely customized) system on the new pc, and just forget about this small nightmare.

Hence the question: how do I do that?
Ideally I would have thought of imaging in the recent past, unfortunately my last system image backup is from like 6 months ago, thus unsuitable (or, last resort).
So: I have a perfectly good win10 on a perfectly working SSD on a broken machine, and a new machine incoming. Is there a way to put os from the former in the latter?
I thought of 2 routes:

1) I figured I could install my/an image backup sw on new pc and take an image of old system by attaching its ssd via external usb spare case (which I have), and so the answer may be as simple as 'of course, just use such and such image sw, it'll for sure let you image an offline system, then universal restore that'.
And so, which (of the many) sw would that be?

2) Eventually, a second option could be to swap the old disk inside the new pc > change bios to boot from usb (ie never actually booting in old windows disk, probably avoiding a BSOD) > launching image sw from usb (any will do, at this point), which would then be tricked into seeing the old disk installed as primary > and proceed to image as usual.
Would that also work?

Any other ideas?
Thank you in advance for your suggestions.

 

Thanks Acer,
that would indeed be the quickest. Also you were the quickest ;-)
Two questions:
Wouldn't suggested procedure be at risk of BSOD and/or general system instability if it even gets to boot, given the dissimilar hardware?
Supposing it boots and yes it is unstable (don't know what to expect, perhaps random BSOD?) but indeed I could manage to image it: would the windows image eventually work as nicely as before when properly universal restored later on the new disk, or bring with it such instability?

 

If by not melting you mean that your plan would not cause my system to accumulate errors, flie leftovers, corrupted registry entries and what not in case of a few crashes, then it may be an option. Otherwise, I'd prefer not risk it if I can.

So my plan A is still to find a image sw that can handle offline imaging if it exists, to keep system as much clean and smooth as it was.
Perhaps someone else can suggest a name?

Plan B would still be the 'swap and usb image' without actually loading any windows from old disk. I may try, sounds good to know if procedure works.

Plan C, leap into the unknown and be ready to face dreaded BSOD.
By the way, I'm surprised it is even an option.
Don't all image sw suggest/support 'universal restore' feature exactly because of that? I was under the impression windows would not work 'as is' on dissimilar hardware, but probably nowdays is less of a problem, as you say.
Thanks for your help Acer.

 

My man, thank you.

That's all I needed to know.

In the end, I decided not to bother, While I'm at it, I'm going to install a new windows and enjoying my time configuring and customizing it (also, setting up a decent backup plan to follow, lol).
I'm left wondering whether any of those plans would have worked, but I guess it may be a nice experiment that can be done at any time.

Btw, this was my first interaction with this wonderful community, from which I keep learning a lot. Thanks guys!

 

FIY @pm67310 and @acer-5100,
old system on new drive: it worked flawlessly.

The 2 machines are pretty similar in hw, maybe this helped a bit, I don't know.
Anyway it worked, no glitches, no BSOD, running smoothly.
As per leftovers or broken registry entries I don't know. One thing that occurred to me is that the SID is probably the same (during boot up it showed a message like 'updating devices 66%' for a few extra seconds, but who know what it was doing), nevertheless since the old pc is not anymore, it doesn't matter.
WIll the system be as stable as before? We'll see (or not. I still plan to install a new more recent OS).

This is how I did it:
put old drive in a spare usb case and connected it to new.
Booted to hasleo backup suite via usb, made an image of old sys partitions.
Checked if it'd allow a 'universal restore' of those (ie using them as they were a system image): it doesn't.
So I imaged new system (just in case) and then proceeded to restore old sys partitions image over it.
Rebooted to win: and there you go, old sys is there up and running, smiling at me.

Thanks again guys.

 

Spoke too soon.
TLDR Hasleo procedure did not work. But to just swap disks (as I was suggested) would have.

I just succesfully installed Hyper-v from 'additional components' to prepare my newer windows system with, when I noticed that windows is not activated anymore (message on the lower right corner on desktop).
Not a problem I said, but went and opened drives management to check things out: new disk correctly shows as C, attached old disk shows as E.
But... E shows as active/boot disk!
Couldn't eject it, as 'in use'.

Shut down, took it off, went into bios, set new disk as first boot device (last time I did not bother checking boot order when rebooting from Hasleo as it just started and I wrongly supposed it was from main disk).
Rebooted. Blue screen.
Well, kind of a pale washed out blue screen, saying: 'Recovery. Your system needs to be repaired', and a few options.
Pressed F1 for recovery environment, did not work (PC just reboots to pale blue BSOD).

So to recap: yes, Hasleo did succesfully restore image, but not as a 'system', just as plain files in a disk partition (as it was supposed to do), ie 'plan A' did not work w Hasleo image suite. Yet if I had simply swapped new disk with old inside the case, it would have worked (just as it did with the old disk simply attached via usb).
What now?
Well, I'm ok with all that. As of now, I don't want to bother opening the PC case and swap (or add) old disk in. If I did, I would also try 'plan B' above first ('swap and usb image' without actually loading any windows from old disk) just to scratch the itch and see if it would have worked (seems likely, given the above), yet knowing that 'plan C' would be ok in case it didn't.

Off I go to a wonderfully long weekend of installing and customizing a new windows. See ya!

 

Yep!
Curiosity killed the cat.