Power Eraser stuck on "Loading Data"

I have a laptop with GRUB bootloader. Today, my computer crashed and since then gets stuck on Windows Starting screen. I tried starting in safe mode, but it won't let me get past loading all the drivers. Now, it won't even let me use f8.

So, I installed Norton Bootable Recovery Tool to my USB drive (from a different laptop) and booted it up.

Then I clicked on Power Eraser with my Ethernet cable. However, the screen just shows "Loading Data".

Norton states that the program should take around 5 minutes. But it has been almost half an hour.

Is this normal, or is there something wrong?