Hi, I'm Brazilian and I'm starting to try to use Manjaro. I had some problems, and there are not many tutorials in Portuguese, so I decided to ask for help here.
I had until recently on my Samsung Notebook Gnome-Ubuntu installed alongside with Windows. I can not remember why, but I had a very difficult time with Grub. Then decided to delete Ubuntu in Windows disk management and then use Manjaro. It turns out that in the UEFI loader the "ubutu" option continued to exist next to Windows Booter. I spent a lot of time looking for tutorials on how to delete ubuntu from this folder, until I found EASYUEFI: I simply deleted ubuntu with the program.
I thought this would make installing Manjaro without problems, but now I only have Windows option to load. I installed Manjaro in Dual boot following a tutorial that I found (in the image), but my manjaro still does not load. I think it's a bug with Grub, but I'm new to Linux and I have no idea how to fix it. The picture also shows my disks from Windows.
http://pt-br.tinypic.com/r/21esmd/9
Edit:Samsung also have some backup partition on my disks. Would the EFI be loaded there?

Did you shrink your Windows partition before you installed Manjaro?

During your installation did you install Grub to the MBR?

Posting a link to the tutorial you used would be more helpful. Would it be similar to the one at the link below? Did you select the Manual install method (best option)? Did you boot UEFI? Did you install UEFI? Have you mounted the EFI partition on the disk to see if there is an entry for manjaro?

http://linuxbsdos.com/2016/11/07/how...uefi-firmware/

Hi guys, I found out what was wrong. I was having an issue booting my pendrive with manjaro: I used Yumi and Unetbootin, but the samme issue was repeting, so I used "Etcher". As an ubuntu and Unetbootin and Yumi user, I just attached the pen and I supposed everything would work as always. But Etcher creates two files: On bios/UEFI I was viewing one Pendrive's name (Sony smething else) and other with the same name, but with UEFI in the end. I was booting with the first one. After 3 failed installations, I decided to use the "Pendrive-UEFI" option. It worked!!!!!
I guess the fist option didn't have GRUB. I'm already using Manjaro and i'm lovingit.