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I was trying to format a 64gb SD card to FAT32 file system using a free program called Fat32formatter and when I pressed the "Initialize" button Windows went to a BSOD (Win8.1), shut down and upon reboot advised I no longer had an OS.

I have found others who have experienced the same problem using the same software and reported fixing the issue with TestDisk but I don't seem to be able to recover even having followed the tutorial here. I am using Hiren's MiniXP LiveCD which has TestDisk v6.14 and have verified all the partitions can be located through quick search and the files are intact. When I write the partition table and reboot it doesn't work and I have selected the correct drive in the BIOS.

It doesn't look like I have a bootable partition. All partitions are accounted for though. I hope someone with better knowledge than I can help.

Here are my screen shots of TestDisk:
Screen Shots

Try using PC/Intel partition table instead of EFI GPT and rewrite the partition table.
The primary bootable partition should probably be [System].

cgrenier wrote:Try using PC/Intel partition table instead of EFI GPT and rewrite the partition table.
The primary bootable partition should probably be [System].

Hi, thank you for your response and for TestDisk!

I am in the process of running a deeper search because after the quick search it says "no partition found or selected for recovery."

I'm not sure the [SYSTEM] partition is the one that should be bootable. My Windows installation is on the [WINDOWS] partition. I have taken your advice and selected Intel and the info on the screen is different so I have taken screenshots of all the details and the files on each partition here.

Deeper Scan Results Here

I wrote this to the partition table and rebooted. Still not able to boot into Windows.