win7 x64 from usb can't create system partition

[z3phir]

hi

i want to install windows 7 x64 pro from my usb stick

the setup starts i select country keyboard etc

when i have to partition the hdd i get a error "windows can't create a system partition or find a existent system partition"

not sure if this is the actual message because my win is in another language and i made a translation from the original message.

i can create partions manually format etc but when i press next that's the error i get

the computer is new it only has a 500gb sata hdd no cdrom or other device

any ideas ?

Edited September 28, 2010 by z3phir

[ilko_t]

How many hard drives do you have connected?

Do you have any other mass storage device connected, USB card reader, external USB disk/SD card etc. etc.?

How do you boot from USB, changing boot order in BIOS or by hitting F12/whatever key and then selecting the USB key?

What did you use to prepare the USB stick with windows 7 setup?