20.04 – Ubuntu installation on logical partition not showing

I am originally a windows user and i have created 3 partitions C:Windows/UnetBoot [Primary], E:RandomStuff [Logical], L:Linux [Logical]. However after installing ubuntu with unetboot, starting up linux and installing to the L drive i can’t boot into the installed ubuntu on the L drive and it doesn’t show up in windows anymore. How can i make windows detect the installed ubuntu on the L drive?

Here is the guide i followed to dual-install ubuntu with unetboot: https://linuxnetmag.com/how-to-install-linux-without-usb/