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Can’t extend volume in Windows after deleting Ubuntu dual boot, and Ubuntu still shows up in boot options?

I installed Ubuntu to my second SSD (500 GB not main) as dual boot. I have now deleted it as I don’t need it but whenever I try to extend the volume to the unallocated space it says there isn’t enough disk space. Moreover, I still get the option to boot into Ubuntu even after deleting it. I tried following this tutorial https://askubuntu.com/questions/429610/uninstall-grub-and-use-windows-bootloader to delete the ubuntu bootloader but when I went into the EFI partition there was no Ubuntu to remove. I’m really confused right now. I’ve attached a picture below to show my drive state for clarity. Please do help if you can. Thank you.

Drive State