Hi! I'm facing the same issue. Today I was trying to make a bootable Windows 7 USB using WinToFlash. The application requested the source (location of OS) and target (USB drive) which I furnished.
The application then proceeded to copy the data onto the USB drive and on completion the system restarted but did not boot up - only the letter 'J' is flashed on the top left of the black screen. Nothing happens beyond this point.
- I've tried restarting a multiple times but the same result.
- I've tried booting from the DVD drive by making use of the Windows installtion disks but the setup fails of recognize any Windows installation or even the harddisk.
Could you please help? Should I try to intalled a driver
so Windows setup can recognize the harddisk?
My configuration is as under-
HP ProBook 4420s
Windows 7 (installed from a DVD)