Hello, I have recently replaced my laptop with a new hard drive and extra 4GB ram slot, My laptop is a samsung np400b5b-s02uk, i've put in a Seagate 750GB SATA-II HD and a 4GB 1333MHZ Corsair Ram slot, I am trying to install Windows 7 Home (x64) onto it, i insert the disc into the drive but a message appears saying boot device not recognised, i've selected it to boot from CD in the BIOS but still nothing.
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Sound like the CD (DVD?) is not bootable. Where did you get it from?
See that you selected CD drive as 1st boot device, but is the CD/DVD drive recognized in the BIOS?