Satellite L645D (PSK0QC-00K007) sata / ahci controller drivers for deployment. Pls. i have replaced the harddrive attempted many reloads of different copies of installation media. including windows 10. replace ram as well with known working. fails during media expansion. bios sees and displays proper information. and when booted to installation media. cmd, chkdsk (no errors), and diskpart able to function and work with the harddrive. any info would help. sdloki76