What does "Installable" mean within Diskpart Detail Volume properties?

I have been trying to understand why my bootable flash drive no longer works. I have researched a ton and the only thing that seems odd is when I select the volume and then type "detail volume" all of the properties are listed as "No" included "installable". Is there something that could have caused this option to change? Is there a way to make it changed back to "yes"?

I have checked to make sure the flash drive is recognized, the computer is set on legacy boot and Flash drive is the first option. On the flash drive is everything including MBR, imagex to run my ISO etc. I have used this flash drive in the past numerous times and it all of a sudden stopped working.

After doing all my research I can't find anywhere an explanation of what "installable" even means when looking at the "detail volume" properties. Any help would be greatly appreciated.

Thanks!