Are you trying to say the devices were NOT recognized? I don't think that would be an issue with safe boot etc since those are about WHAT gets installed or booted and not
what devices are available. have you looked for boot sequence option in UEFI?
Are these devices not recognized by the OS? Did you set one of them as the primary boot device?
Have you tried speaking with Sony?
Per a user on Sony's forums
1) first create recovery media with the VAIO software, just in case. You’ll need a 16g usb stick. Write down (or take a photo of) the model, service tag number and serial number that are displayed in the VAIO Care software.
2) create a bootable USB drive from a Windows 7 install image (Windows 7 usb/dvd tool from Microsoft)
3) while the laptop is turned off, press the assist button. Go to BIOS. Change boot mode to legacy (not UEFI). Disable secure boot.
4) insert your Windows 7 USB stick and again when the laptop is off press the assist button. Choose to boot from USB.
5) Make your way into the recovery console and run diskpart. Enter the following commands: (WARNING!! Everything on the SSD including the recovery partitions will be wiped! Make sure you have created the recovery media!)
select disk 1
6) (You may need to reboot again). Install Windows 7 like you normally would, activate etc.
7) The WiFi drivers you have to get from the Sager notebook site. Intel Wireless-N 7260 Windows 7 driver. It says Wireless-AC but it’ll work, trust me. Ferry the exe to your laptop via a USB stick. Run the exe to uncompress it, then go to the Win7Plus folder, Win64, Drivers, Win7 and run DPInst64.exe (and iProDifX.exe?). Also run setup.exe that’s located in Win7Plus\Win64\Install. That made the WiFi work on my laptop.
8) The rest of the drivers you can locate on Sony’s support site.
Edited by sp1ke0kill3r, 04 August 2015 - 03:48 PM.