Good day! Sorry for the confusion here we go I ll clear this one up:
I have windows install on an old laptop and then I install long time ago manjaro on dual booting both are on EFI and one partition is mount to the windows one Never had an issue…
This morning I try to experiment by putting Manjaro OS into a USB and just boot into it and run it for extra privacy this did work but was too slow…
Unfortunately after removing the usb I lost my boot! I could only boot into windows…
I did try this Fantastic post! but this didn’t work…
So the solution was to run a usb image of manjaro go to installation and pretty much just rehook the mount / and hook up the EFI of linux with windows again…
This fixed the issue! And I didn’t lost any data!
Thanks you