*shhhh*
I am going to let you in on some secrets. Secrets on how to exploit some vulnerabilities in Windows Vista, thereby stalling the system, rendering in that frustrating despair of useleness. Sounds like fun, huh? Read on.
Drag the taskbar around the screen.
Yeap, it's that simple. Windows Vista occasionally trips and falls flat on its face while performing this exceedingly difficult inverted flat-spin manoeuvre 30 feet into the air. And fails to get up.
I don't know how many times it has done this and Windows simply refuses to recover. Not even a Shutdown command can put it to sleep. I have to reach down underneath the desk to press the button that releases the trap door into the burning furnace.
Next tip: plug in your external USB hard disk, so that it cannot boot past the BIOS screen.
Yeap, it wouldn't even load the disk/drive check sequence. It simply stalls, go take a nap, wet the bed and drool on the pillow. It simply refuses go any further until I plugged out the USB cable.
See, I told you that technology have gotten so advanced and made things so straightforward, even DOS attacks one's self is a mind-blowing child's play. Even your toddler kid or dog can do it too!
UPDATE: This external disk is coughing all along the way, with phlegm, blood and all. It wouldn't be long before a read or write operation would stall the disk, rendering it comatose and possibly endangering my OS as well. I had to power-cycle the disk itself before it could continue. Repeatedly. I wonder why there are no insurance plans for hard disks.