Windows 10 How to check on which of these ubuntu is installed ?

[Akash Anil]

I wanted to check on which of these partition Ubuntu is installed as I want to delete them from the disk management menu.(disk management pic is attached with this post)

 

[Neemobeer]

It's either the 139 or 8 GB disk. You can either boot into Ubuntu to confirm the size or you can install the ext driver in Windows, then you should be able to view the filesystem Ext2Fsd Project