Vista - Vista Home Premium 64 bit randomly won't boot 0xc000000e

Hi,

I recently upgraded to the windows vista home premium 64 bit edition for
games. I clean installed the upgrade. Quite frequently Windows will either
freeze in operation, or just not boot. Either way, when I restart the
computer windows says that winload.exe may be corrupt or missing, when it was
able to boot seconds before. I have tried the startup repair function from
the vista cd, which 99% of the time does not work.

However, if I keep trying to restart, or leave the computer for a long
enough time, occassionally the computer will work again.

Does anyone have any solutions?

Thanks,

Ricky