Windows 10: Where to install grub

Hello,
Hello I need help Installing zorin-os alongside windows 10. The Grub Installation failed and I don't know which partition I should Install it to I want win 10 to be my default so Not lose it.

https://i.ibb.co/g68731t/IMG-20201104-011447.jpg <---- the partitions

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I can also go without it but then I can't dual boot into zorin because there is no booloader (grub) Is there a way to install grub via windows then?

:)

 

Linux Noob - Ubuntu fails on install GRUB error 2

I dont think it would be a problem with the UDMA mode cause Grub is installed on the MBR of the hard disk and even if grub can be read and the O.S cant start it should atleast display the list.
I say you should try a re-install but first when you boot up the cd select check C.D fo defects.

 

GRUB loaded error

When I go to boot suse 10.2 with grub, after the bios checking It just displays; "LI." and stops. It just says LI and stops. I now boot with a install disk, then just choose boot from harddrive and it works. Any suggestions?

 

Linux Noob - Ubuntu fails on install GRUB error 2

I tried the install a second time with the same result. I did notice there was an option to test the CD so maybe that would be worthwhile. Just to make sure the CD burn worked out ok.