I'm trying to install the OS from a USB flash drive. It's an HP Mini 100 and when it boots it gives me the message, 'System has detected a very low battery level, recommend replacing battery. Press Enter to continue Startup.'

Fine, the machine works on the power cable and the owner doesn't want to buy a battery.

I start the installation of Win 7 and at some point, setup wants to reboot. Then I get the low battery message but setup doesn't continue. The option to 'Press Enter to continue Startup' only begins the whole installation procedure from the beginning again.

How can I get past this message?

Thanks - rev