Can a bootable clone drive be updated differentially?

I have a lot of backups from differrent programs on different backup drives for my Windows 10 Pro 20H2 systems. But my favourite backup device are bootable external SSDs connected via USB. When my system crashes I simply boot from this external drives. But to keep them up to date I always have to rerun the full cloning process (with WinToUSB from Hasleo). It would be nicer if I could simply update them with some delta cloning software (as I do with my music and foto folders that i backup with syncing software, SecondCopy in my case). I have the same problem with my internal boot drive. To clone them is no big deal, every backup software can do this. But once again. Can these clones get faster updates somehow to avoid the writing of the full Windows system (roughly 75 GB) every time I want to update them?

Macrium Reflect Paid versions certaily support incremental cloning (Rapid Delta Cloning) but I am not sure it it will work with bootable external usb drives.

If you install the free version, you can have a free two week trial of the paid options, so you can test it.

cereberus said:

Macrium Reflect Paid versions certaily support incremental cloning (Rapid Delta Cloning) but I am not sure it it will work with bootable external usb drives.

I am sure that it will not. As far as I know this can only be done by using Hasleo WinToUSB. I did it several times and it always worked.
But here I want a simple 1:1 clone of my internal boot drive. In case something goes wrong (mostly software related not hardware) I do want to simply exchange the old internal boot drive with the up-to-date clone drive stuffed into the PC.

I know from my Apple mac mini past that macOS can boot from whatever you give it as a boot drive. These days even without a speed penalty when the clone drive is attached via Thunderbolt. In the Windows world this never was possible (except those few MS certified To-Go USB sticks, all of them quite slow compared to an external NVME-SSD with a USB gen 3.2 connection these days) But years ago I had a tower PC with a built in harddrive slot for special hard drive enclosures. This was connected with the motherboard and not as USB and therefore the boot drives could be changed easily.

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cereberus said:

If you install the free version, you can have a free two week trial of the paid options, so you can test it.

Unfortunately for me no more. As I have installed Macrium Reflect in the past I could not find these paid version options anymore this time.

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TechnoMax said:

Unfortunately for me no more. As I have installed Macrium Reflect in the past I could not find these paid version options anymore this time.

Wrong: I simply downloaded the 30-Days-Trial Home version (so far Ionly had the free version) and let it run: The first complete clone took some 15 minutes or so. The second "update" run with not that much changed of course after a few hours was finished after 4 minutes. And it could boot. As is was an old 250 GB hard drive it took ages of course (I am really not used to this anymore) and was as loud as a houshold apliance, but it worked.
Thanks for the advice!

cereberus said:

I am glad this helped. Reflect is worth paying for for its Rapid Delta restore/cloning alone.

Before buying Macrium Reflect I would like to know, how my license would survive a crash.
I am asking this as EaseUS ToDo backup Home, one of my current backup apps, did not work anymore after I changed the disk layout of my PC and now have a small SSD for Windows only and another for the rest of my data. As I obviously changed my PC my 1-PC-License was invalid now. Fortunately I could deregister it on the website of Easeus.
Macrium says that with a one PC license you have to deregister and uninstall it before the boot disk (or the whole PC) can be changed. This is understandable. But what do I do in case of a crash? Obviously I can restore my system to a new boot disk or a completely new PC with a rescue stick. But then, for further backups, what do I have to do?
(I tried to ask this question in the Macrium Forum, but they accept only posters that have bought the software already.)