I installed windows media on my USB and made my computer boot with USB first. When Windows prompts to install it then asks for product key and I put my w7 key because it works. Then it takes me to upgrade: install Windows and keep files, settings and apps or custom install windiws onlyou. If i pick upgrade it tells me the computer started using Windows Media. Remove the installion media and restart your computer so that Windows starts normally. But it won't start without usb.if i chooae custom where all my settings will be deleted (makes sense given its fresh ssd) itll go into windows installing. But I thought I should get a prompt asking me to download off usb drive? My other hhd is disconnected. SSD is only one connected.