When you change the OS to XP, the instructions say to change a BIOS disk setting from AHCI to "Compatibility". If you upgrade the BIOS this setting will go back to AHCI and you need to again set it to Compatibility. Otherwise the XP system will not boot.
Here you will find BIOS for y510 and all the instructions you need. Option B is integrating driver for SATA into installation disk, you don't need it if you switch AHCI to compatible mode, so you can forget about it.
Hi, I intend to have dual boot so that I can choose between Vista and XP when Y510 startrs. Once I have changed the setting from AHCI to "Compatibility" for the purpose of XP installation, and when XP has been successfully installed, do I change back to AHCI? If I do that will Y510 give me the option of dual boot when I switch on the computer? Or do I just leave to "compatibility" if so, will I be able to dual boot when y510 is switched on? Thanks for the help
If you do not want to change BIOS setting when booting XP you have to provide an AHCI driver on a diskette at XP installation time. You can find such driver on Intel site search S96S drivers you will find AHCI driver 32 and 64 bits.
I created a disk with XP (but no dual boot) XP is running even faster than Vista 32 according to my own experience.