I got an acer laptop V3-772G 747a model, which i bought it last week. I am pretty happy with the hardware but the windows 8 that the laptop came with is just useless.
Anyway, i decide to downgrade it to windows 7 as i was happy using this version on my desktop. I try two days now to make just a simple format and it seems i try to hack nasa's computer.
What i have done exactly:
1. backing up driver.
2. Enable F12 menu in bios
3. Disable security mode by setting up password and delete it afterwards.
4. Disable network boot.
5. Setting first device the cd rom and second my usb stick
6. Setting bios to Legacy .
For each step i save and i reboot. When i do the last reboot, comes up the booting menu by pressing F 12 and when i choose to boot from the cd rom or from usb stick it comes the "no booting device massage"
Any suggestions or recommendations on that???
Thank u very much for ur time in advance !!!