I have tried installing docker on windows 7 (using boot2docker).
However the console just exists abruptly and I am unable to see the error, much less run any commands.
Please check your BIOS for a VT-x setting. According to the log you provided, there is an error: VBoxManage.exe: error: VT-x is disabled in the BIOS. (VERR_VMX_MSR_VMXON_DISABLED)