I recently bought an ASUS S56CM notebook pre-loaded with Windows 8 x64 and a lot of bloatware.
So I decided to download a clean retail version of Windows 7 Ultimate x64 (X17-59465), create a bootable USB and do a clean install.
What I did:
Create a bootable USB
Enter BIOS (UEFI) enable "launch CSM", disable "secure boot" and set priority boot to the USB
Works fine, I entered windows 7 installation and did the following:
1) Shift+F10, enter command prompt
2) diskpart, list disk, select disk # (my HDD), clean, format MBR, create partition, format NTFS and successfully installed my Windows 7 Ultimate x64 into my newly formatted disk
3) It restarted and continue booting into the same USB
4) so I realize that I should change the boot priority to my HDD
5) I tired putting my HDD to first priority but it still boot to the installation USB
6) So I decided to restore default settings in BIOS and "save & exit" (my mistake)
7) It rebooted but nothing happens, literally.
8) there is power, but the screen is blank (not black, no light at all)
9) I've tried to search for solutions such as inserting bootable devices such as USB or my Installation DVD, the machine will sound (attempting to run) for a while but die down and a state of clam resumes.
10) I've also tried holding the power button for 60second when power is unplugged then plug in and press power button but it did not work as well.
My default settings for BIOS are as follow:
SATA Controller is ACHI
Secure boot: enabled
Fast boot: enabled
Launch CSM: disabled
I sincerely hope someone here can help me out on this, I at least want to get into BIOS again and change the boot settings as there is absolutely nothing on my notebook now. I appreciate all help on this. My last resort would be bringing down to ASUS service center to get it fixed.