Where is the run diaglogue box getting it's list of folders/files from (Windows 10)?

I've been trying to find the source of the data stored in the windows 10 run dialogue box/autocomplete.The history is disabled and shows nothing:

https://preview.redd.it/vexdfqm6e0va1.png?width=612&format=png&auto=webp&v=enabled&s=d6b648e6ddbd1a5f49dc94ea58c6a52b883bb2f6

But if you start typing a path of a removable drive that's not connected you get a list of files that is no longer present:

https://preview.redd.it/526gh239e0va1.png?width=587&format=png&auto=webp&v=enabled&s=dbd014ab1fba5d97954b6a3dba447cb431288b50

If you type the full path of the drive (ie Z:\\ instead of Z:) then you get the current drive contents:

https://preview.redd.it/1y1cvh1be0va1.png?width=600&format=png&auto=webp&v=enabled&s=566fe1896287d2c528a75701692b59ec50f4ea40

I've searched the following locations:

C:\Windows\Prefetch\
%localappdata% …

box computerforensics current data disabled drive explorer files find folders history list microsoft path prefetch run software start system windows windows 10