win 8 to 7

so I'm running on a Lenovo ideapad y500 preinstalled with windows 8.. I formated the drive by using command "clean" than formated my drive to NTSF for windows 7 compadibility or to at least the the installation working. However after that I am getting an error called boot manager is missing however.. When I change my boot options back from legacy to eufi I'm able to boot the windows 7 cd.. Though when I try to boot the cd from eufi it continues to freeze and I can't do anything.. What do I do to install windows 7? My windows 8 is wiped off the drive and I'm using an external cd drive to run my windows 7 disk.

oh and I should mention when I get into windows 7 boot menu. No matter what I seem to do I get the error. Setup was unable to create a new system partiton or locate exsisting partition

win 8 to 7

YES & NO, down to your UEFI/BIOS firmware setting.


As this is a OEM manufacturer's PC with Pre-installed Windows 8.

1) Downgrade to Windows 7.
Downgrade Windows 8 to Windows 7
Warning you must have the UEFI/BIOS firmware setting in Step Three set.

Make sure you read the NOTE at Step three.

2) If Using a USB Pen drive on a PC with a UEFI BIOS.
USB Pen drive need to be formatted to FAT32 as in
UEFI Bootable USB Flash Drive - Create in Windows
Take note of Step 11 for Windows 7.
Also you will need to use a USB 2.0 port, as there are no USB 3.0 drivers in Windows 7.