Hello I need your help. I have windwos 7 and 10 installed on my pc. Few days ago I turned on my pc and after the bios logo, the screen was blank. I used system repair disc to repair it. But it repaired windows 10 instead of 7. So I logged into win 10 and there, the drive in which win 7 is installed, is showing as a RAW formatted drive and whenever i try to boot into win 7(windows 7 is listed in the boot manager) after the message of starting windows it displays a BSOD saying UNMOUNTABLE_BOOT_VOLUME. Please help me