Have Ubuntu the drive image of the external hard drive restored, how can I access my external hard drive again?

I have no idea about Ubuntu and am absolutely used to Windows. Nobody has prepared me for it either. Prehistory: I want to flatten my PC (with Windows).

I have a Windows 10 ISO file clicked on my laptop where Ubuntu is on it and then came "recover drive image". Then I have selected the external hard drive at "Ziel" (Please do not ask why, the answer is way too tricky).

I have no idea how I can access Ubuntu's external hard drive again. I think I did not know it before. In any case, if I now try to close the external hard drive to my PC, the following happens: In the devices, I can see the properties but I do not know how I can access it, because under "Computer"; "Hard drives", I will not see the external hard drive (which was it but always).

I do not know what to do anymore and I'm totally dependent on your help.

I want to flatten my PC (with Windows).

You want to completely reinstall Windows 10 or what exactly do you intend to do?

Yes. I intend to do that. But that's not important to know. I just need to know how I can access my external pc again.

If you have that before (Windows 10 new installation), then this has nothing to do with the external disk.

For a new installation you need the Media Creation Tool from Microsoft, so you can create a bootable Windows 10 installation media on a USB stick (at least 8 GB) (the whole thing must be done on a Windows machine, Win 7 or higher) , With the stick the computer is booted, the installation of Windows 10 starts…

You can later reformat the external hard drive and continue to use it:

https://www.heise.de/...91304.html

No I have written extra but do not ask why I hit the plate. I do not have internet on the PC right now, so I have to flatten it. I have accidentally cleaned the virus by mistake something removed why I no longer come to the Internet with it, so I have to flatten the PC and install Windows 10, because previously cracked windows 7 was on it and I now want 10. I already have the Iso file to install offline, and I have a license synonymous. I need now only a working external hard drive to my important documents, images, etc. To secure.

Then try the external disk under Ubuntu (or another computer) to reformat the disk. The data on the disk is then deleted (the Win 10 - ISO is not important, which is there anytime):

https://www.google.com/...ormatieren

https://www.google.com/...ht+erkannt

Thank you. Yes, it works

Well fine.