Unable to boot Exam Live USB Image

[praseedc]

I am getting error :

../../grub-core/disk/efi/efidisk.c:602: failure reading sector 0x1a52c0 from 'hd0'.

Press any key to continue

Although I press any key it doesn't move and gets stuck. Please help. I want to take the exam soon.

[igalin]

I'd suggest to do the following:

error suggest bad USB flash drive(at least "dead" sector)

1. try booting on another machine(PC/Laptop), preferrably with different HW(might failing due to HW incompatibility). 

2. if above doesn't work - use another known good USB flash drive (current one might be corrupted).

Good luck.