Booting from USB for checking system,rescue,and iso file size only 10 MB.
Files or damage partitions rescue with photorec and testdisk
Local drive health status checking with HDSentinel(Total version buy in HDSentinel website)..
Checking Videomemory or system memory with vmtce or memtest86+ or memtest86.
Hardver information utility hdt(Hardver Detection Tool).
Manufacture utilitys(WD,Samsung)
BIOS password rescue or reset.
BIOS update utility(without update files,hide-only use risk!).
Try finding windows XP,7,8,8,1,10 boot files and try booting(if MBR damaged).
Download [0.90 ßeta]