Greetings, following lto guide of elav to install ArchLinux, I was finally able to install it. Well, I work given technical support in Windows and for this reason my HDD's are in NTFS format.
What happened was the following, that I connected my HDD and it took time to read it, I wanted to create a folder and it told me that I have no privileges. At first I thought I had installed Arch wrong and went back to reinstall the OS, but to my surprise the same error continued, I searched and searched and found no solution, so I decided to go back to Sabayon.
But it did not last more than 3 days in Sabayon (it must be said that ArchLinux "LOVES") so I reinstalled Arch. I had already given up on my disk, until I realized that or rather I remembered, that Arch is from the distros in which you install what you need and DO NOT install things that you will not need.
It was at that moment when I felt "stupid" for not having realized it before, if the solution is so simple, I had asked for help even in the forum, in short, for those who use Arch and have or have this problem, it is solved with this
# pacman -S ntfs-3g
and as you can see I already have support to write and read in NTFS, until next time