Folder(1) was copied inside new Folder(2)... Erased Folder(1) THEN: Lost both!

Help & Support
1

(A) Had Folder(1) which did not allow name changing, "because open document". Closed "document" but did not allow name changing.
Next day, same thing. Changed Folder1 icon to "forbidden sign icon"

B Then copied Folder(1) Inside brand new NewNameFolder(2)

C Made sure both had same size (with F5)

D Deleted Folder1 permanently with Shft-Del

E The copy of Folder(1) inside Folder(2) also was deleted.
Everything was lost! SOS!

2

That's impossible, unless something very strange was going on at the operating system level, or the copy was only a symlink and not a real copy.

3

In case you are looking for an undelete tool: I have used Recuva successfully. Get the portable version from heise.de. Download directly to a thumb drive. Hurry up, if your folders were on an SSD. Good luck!