Laptop is HP pavillon 6d with pentium dual core T4200, ram is 4 GB, Bios F.12. Old HDD failed and we got a new one, 500 GB sata, as the old one. I put it in a Windows 7 desktop and formatted it to NTFS as a single partition for the whole voleume. Probably it then automatically was formatted as a secondary HDD. I then put the formatted HDD into the laptop.
When I try to make a clean install of windows 7 home premium, the installation process reports that windows can't be installed on neither the small nor the large partition (funny, I didn't intend to make two partitions...). There is lots of info on GPT and windows 7 but none that in a straightforward way explains what to do in this trivial situation. How could I proceed?