XXHighEnd

When we look at the contents of the RAM-OS disk and assumed it is booted from the TRIAL-denoted Operating System, on the C: drive we see this (or very similar) :

(http://www.stordiau.nl/XXHighEnd/XXHighEnd RAM-OS Backup 01.png)
Latest version as of April 15, 2020 :

(http://www.stordiau.nl/XXHighEnd/XXHighEnd RAM-OS Backup 01aa.png)
A note on the latest version above for the SSD version (the HDD version pretty much remained the same, except that 14393 was added to it) : We can see that the - Copy version of 10586 has been removed. This is to save space for the full backup of 14393, assuming that people will mostly be using that anyway (10586 is a bit of all of nothing).
Also, 10565 is has been declared obsolete (14393 came in its place). 10074 is also obsolete but maintained for its special sound. Set the date in the BIOS to Sept 2, 2015 in order to be able to boot from it.

The "Copy" entries are just that - copies of the Operating Files you see, with the notice that these are "images" of Operating Systems (and VHD stands for Virtual Hard Disk).

WATCH OUT :
Only when you booted from the 10565 TRIAL OS, you can freely "manipulate" with what's describe below, without a more deep understanding. HOWEVER, when you have booted into one of the others, then this is NOT the case at all. So strict advice for now : do not touch any of this when you are not booted into the TRIAL OS, or otherwise ask first.
Otherwise it should not even be necessary to touch anything, as it is for emergency.
So here goes :

Because the whole of your Operating System resides in one file, you can freely copy it. Actually this has been done on your disks; These are the files denoted "Copy". So what you see is a first copy of your fresh OS(es !). These are on the disk itself, so migh something happen to the disk then you lost the Copies as well. The idea is clear : copy the copies to somewhere else (e.g. move them to a not too small USB Flash drive).

Watch out again :
As was told above, this is what you see on Drive C: when you booted from the TRIAL OS. However, did you boot from any of the other OSes, this will show on Drive D:. It is exactly the same, but the Drive Letter changed.
Something else is that when you booted into one of the RAM OSes and removed the disk, no Drive D: will be there. It can be, but that is for another Tutorial, later.

Remember, the "Copy" files are 100% the same as their counterparts, but that only counts until you start doing things in these counterparts. Thus, boot from Windows 8 (MyW8.vhd will now be used) and you will be changing the MyW8 OS. Not the MyW8 - Copy.
NEVER BOOT INTO SUCH A COPY or else it won't be a copy any more. Notice though that XXHighEnd does not present any OS with "Copy" in its name (it is filtered out for your own safety).

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Supposed it is two months later and you want to save the changes you made by then (could be a new XXHighEnd version) then all you need to do is boot into the TRIAL OS, and copy the file of concern;
You can copy it to the disk itself as long as there is sufficient space, so you can be back in a minute or two when something happens (just copy it back to the normal name) but obviously this is not safe for when something happens to the disk.

Lastly, notice that you can copy the OS to another name and add that to your list of Boots. This is super easy (and only seconds of work really) but is for another Tutorial.

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Addendum

Sort of part of the subject is that you actually can not clone the disk and restore it when needed - or even use that clone. On that matter, think like this :

The OSes you use for your daily playing are in those files. The TRIAL OS is just a vehicle, necessary to carry the OSes you use (they must be stored inside of an OS, so to speak). This can be interpreted as follows :

The real thing is in those files, combined with some XXHighEnd 2.05 functionality;
Might you have laying around another OS then you can copy these files on there, apply some trickery-hoopla with XXHighEnd and there you go.

Don't try to understand this all right away. No reason to hurry with it, at all.