I have tried installing Arch Linux and what I ended up with was a partition scheme like this:/dev/sda: /dev/sda1  NTFS partition (Windows 7) /dev/sda2  ext4 (Arch) /dev/sda3  swapI don't know why, but for some reason I have been unable to mount the NTFS partition under Linux.It's worth mentioning that the first partition is, for some reason, detected as an EFI partition and as on a GPT-formatted disk (my computer doesn't have an EFI bootloader and the drive has always had an MBR partition table).I deleted the sda2 and sda3 using the Windows repair disk and was about to install a second Windows 7 installation alongside the first partition, but an error reported that the entire disk is a GPT drive!The Used and Free space available sections indicate that the data on the first partition is still there, it's just that I cannot access the actual partition by any means. It seems that the first partition is with an MBR partition table on a GPT style disk.How do I access the data on the partition?
Recover Windows partition in a GPT disk (previously MBR)
linux;gpt;mbr;data
This is utterly strange, but I have solved my problem.As I'm not sure what exactly solved the issue, I'll describe what happened.First of all, I tried to access the partition from Arch Linux, whichwas installed on the same drive. This didn't work;I deleted the Linux partitions;I've unplugged the computer from the electric source and left itovernight (this helped me a few times, especially while fixingrecursive fault errors during boot);The next morning I created an Ubuntu LiveUSB, booted the computer from it and mounted the malfunctioning partition using the following command:sudo mkdir /mnt/disksudo mount /dev/sda1 /mnt/diskAfter executing the above commands I was able to access the partition and backup all of my files.