I recently purchased an Acer Ultrabook (M5 model) from Best Buy. It came preinstalled with Windows 8, and I would like to downgrade to Windows 7. However, when I put in my Win7 CD, it tells me that "Windows can't be installed on this disk.......GTP format" (Or something along those lines).
How can I overcome this road block? I have all the Windows 7 drivers for my model laptop, but this is my only hurdle to overcome.