Ok i hope without re-reading all the above, from memory i think you disabled a lot of items in your UEFI?
If yes, i would suggest reverting all the changes or setting the UEFI,
From memory i think your dual booting , if so make sure you have windows backed up.
Please don't confuse thing's, now when you say
Do you mean the other distro's are not booting & you get the above error?
or have you been ableto install Zorin OS & this is the error now?
So, I just got Kubuntu working, had to do some stuff, but the community told me what to do, and I'm going to try all the same stuff with zorin and see if it works
Glad to see it's fixed, could you please tell us the laptop or desktop brand/model, i wish to change the Topic title so others with the same model, will locate this solution quickly, sorry if you have posted it above i had a quick look but didn't find it..
thanks again
Zorin Forum Community.