Unable to boot from clean windows 8.1 and 10 installation

I'm having an issue I spent the whole last day on troubleshooting and I've read a lot of threads both here and other QA/forums.

I recently bought a new SSD disk from OCZ, a Trion 100, because my current windows disk is running out of space. My intention was to move from windows 8.1 to windows 10 at the same time as I switch the disks. IE download Windows 10 to a USB stick and making a clean install on the new SSD.

All works fine, I unplug the old disk (and a few other aux disks) and boot from the USB stick. From the boot menu I choose to boot using the USB and UEFI. During the installation I choose a new clean install and it configures 4 partitions on my disk. After doing the first part of the installation the installation procedure requires a reboot and this is when the problem starts. No UEFI compatible boot partition is found on the SSD and it boots from the USB again. I've tested several things to get past this problem but they all ends up with the same result:

• Same procedure but with windows 8.1 instead
• Installing windows 8.1 in legacy mode, deactivating UEFI
• Using diskpart and running CLEAN ALL, setting up a GPT partition in diskpart and format it using NTFS making it active etc. Then trying to install both 8.1 and 10
• Using diskpart to set up a non-GPT partition and format it using NTFS. Windows 10 isn't able to install at all, and windows 8.1 fails with the same result as before.

I have now booted the computer using my old disk setup and checking my new SSD in Disk management

The Above is in swedish and can be translated:

• Felfri: No errors
• Återställningspartition: Recovery partition
• Primär partition: Primary partition

I'm not sure where the fourth partition is, but I can't see that one on my current disk neither so I guess it's nothing wrong by that. However no partition is labeled as active or as "system start". I'm not sure if it's the same term in English.

This is what my current disk looks like, which I've been running windows 8.1 on, and now I've also successfully upgraded to Windows 10. It looks like this is a legacy boot setup?

I should also mention that I'm currently running a dual boot with Linux Mint. I think I set up the dual boot using G-Parted a long time ago. I don't see how that would matter though since I tried to do the clean install with all other disks unplugged.

Checking the new disk in Explorer, I see that part of the installation is in place at least.

Anyone have any idea what's going on here? As seen in the first image there is an EFI partition and my impression is that this is used to boot from? But still the disk does not appear among bootable UEFI drives in BIOS.

I should be able to provide more information on request, but please be fairly explicit in your instructions since I'm not an ops-guy :)

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