I just purchased new Vaio notebook SVE1513C1EW series whit Win8 pre-installed Op.Sys.
For my work, I need to have DOUBLE OP.SYS on my machine at same time (i'm able to do this, already featured on other several machines)
But I cannot to boot my new Vaio using any CD (boot sector provided, of course) inserted in INTERNAL CD-DRIVE: although I also used ASSIST key, switched secure boot in bios setup to DISABLED switched Boot priority to "Internal Optical DD" as first the discouraging, repeated message is: "op sys Not Found..."
Thanks for the reply, but we have not understood...
Please suppose I no longer wish to perform dual boot on my Vaio notebook, but simply I want to make a FULL backup-image of Vaio hard disk on ESTERNAL backup storage-device, using a COMMERCIAL TOOL, such as Paragon Drive Image (Windows Seven BOOTABLE) - so, NO affecting Sony Vaio guarantee - so, NO changing, move, erase ANY of Vaio factory hard drive partitions.
I ask only to know how to boot from the insiede CD : - although I already set in bios CD drive as the first boot; - although I pressed the ASSIST button; NEVER CD STARTS but the tedious (break-******) message appears: "op.sys. NOT FOUND..." !!!! CD used is BOOTABLE of course, either Linux or Windows ALL op.sys.
FINALLY PLEASE: what steps should I do to boot Vaio from the BOOTABLE-CD inserted in inside-CD-drive ????
03-29-201302:42 PM - last edited on 07-05-201308:33 AM by Doug
If you're using Windows 8 operating system, you may not be able to use Windows 7 operating system with it.
The reason is, Windows 8 operating system works in UEFI mode (boot mode), whereas Windows 7 operating system works in Legacy mode (boot mode) only. It is not possible to put a single hard drive with two different booting modes.
We suggest you to create recovery media using the steps mentioned in the below page before making any changes to the shipped operating system.