Not able to boot or enter BIOS after Windows 7 upgrade


Dec 16, 2011
Hi all,

I just bought a new desktop with a GigaByte Z68AP-D3 Intel Z68 Chipset.

My monitor is connect via HDMI.

During its first run it installed Windows 7 Home Premium (trial version), skipping any BIOS or POST screens.

The OS is installed in a 60GB SSD. I decided to upgrade to Windows 7 Professional, so I inserted the disk from Windows and started the upgrade process using the GUI. I chose "Custom Installation" and choose to install in the same SSD of my current Windows. It gave a warning that I might lose my old saved windows items, but I proceeded.

After the upgrade was 100% complete, the computer restarted.

But it did not boot up to windows.

When I turn it on, my monitor says there is no signal -- No bios menu at all, and no Windows 7 Professional boot up either.

For some reason BIOS or POST screens are never displayed, and it seems the Windows 7 Professional installation didn't go smoothly so I can't even boot. The monitor just says there is no signal, but the mouse and keyboard do sometimes light up.

Please help me solve this problem!