Excuse my English I'm from brazil

I'm using windows vista ultimate x64

Windows Vista is on the loading screen and does not start

as the image below

after several attempts he starts or times in the Last Known Good Configuration

I have all the drivers and also updated the windows

and this problem happens I installed on several machines.

I tried to install varies ISOs and nothing

my pc is

asus m2n-e sli

athlon x2 5200+

vga nvidia 8600 gt

If you have an external HDD plugged in (usually by USB) that can cause a great deal of delay in the boot process, for whatever reason. Try unplugging it if you have one. If not, does the problem still occur in safe mode?

I have no device usb hd.

in safe mode works normally. The problem and so in normal mode.

Okay.

That brings it down to a few potential drivers, or applications. Have you managed to boot Vista before?

Anyway, boot up on safe mode and try to disable your graphics card driver and your sound card driver. Search for Device Manager in the start menu, and you can work it out from there.

yes!

if restarting pc many times he starting.