genthug :
Could you possibly ask to borrow someone's laptop or PC to try there? This is the only route that you yourself have to attempt to download it straight to the USB?
I finally got the Windows 10 installer to start up, but then I ran into another problem. I think the problem might stem from something I did as soon as I built the PC. Bear with me.
I took the computer apart and put it back together with no luck. Then I tried uplugging the HDD and the Windows 10 Installer finally loaded from my flash drive. If the HDD is unplugged from the motherboard the moment (or before) the Windows Installer starts, then the program will load all the way up. Then I am free to reconnect the HDD without the program crashing.
In the program I clicked "Install Now" --> Skipped entering the product key -->chose to Install Windows 10 Pro Version--> clicked "Custom: Install Windows Only". I plugged the HDD back into the motherboard but then I get this screen saying that no drive can be found. In fact, it doesn't matter if I reconnect the HDD the instant the program loads up or right before I click for the installation to begin, I still get this message.
Picture 1 here
I read online that a solution is to load the motherboard's sata driver from Windows Installer program. I went to my motherboard's website, downloaded the Sata Floppy Image, and put it on a separate USB. In the Windows Installer I clicked "Load Driver" and opened the x64 version of the sata drivers. The program auto selected this driver, even though there about 7 more drivers on the file.
Picture 2 here
No matter if I install just this one driver it auto selected or all the drivers that came with the Floppy file, I still get the same "We couldn't find any drives" message.
Then I noticed when I click "Load Drivers", my HDD actually does show up shown as "Boot (X: )". Not only that, I think the HDD already has some Windows files on it
Picture 3 here
Then I remembered something relevant.
Before I posted any of this I originally tried to install Windows 7 from a USB drive. The Windows 7 Installation program loaded with no problem, it found my HDD with no problem, but the program got stuck on the very first step which was "Copying Windows Files (0%)...". It was stuck on 0% for 30 minutes so I turned the computer off thinking the program had failed and nothing was written to the HDD. I then tried to install Windows 10 and that's when all of the problems start happening.
Could all of these problems be caused by the HDD already having some Windows files on it? What do I do now?
(The motherbaord is ASRock H110M-HDS with all Bios set to default and the HDD is Western Digital 1TB if that is helps)