installing win7 x64 in VirtualBox - error driver device missing

After creating a vhd and going through that process i'm unable to install win7 x64. I've went through various settings and trying to get it right. It'll boot the windows install but then indicate the following error (image included too):

A required cd/dvd drive device driver is missing. If you have a driver floppy disk, CD, DVD, or USB flash drive, please insert it now.

Note if the windows installation media is in the CD/DVD drive, you can safely remove it for this step.

I've also set up my storage tree like so:

Would anyone know what the issue could be? It's asking for cd/dvd device drivers and i'm unable to install.

I ran into this problem today, you probably already solved your problem, but I'm just adding my experience as it may help somebody else.

(I used a physical install CD and not an ISO file)

1. Open your VM settings
2. Go to Storage
3. Select the CD-ROM drive
4. Check Passthrough
5. Boot the VM with the Windows

This solved it for me, so it might be worth a shot.

You can set a passthrough but this is also where you can point to an ISO file of your disc. I used an ISO because it makes the OS install much much faster and passthrough gets a lot of hiccups for long read times. Think of it as playing hot potato with 3 people instead of just 2.

This is just a wild guess.

It can be complaining because some of the virtualiced hardware is not compatible out-of-the-box with Windows 7. The most likely problem is the network card, if it was another componente Windows will just connect to internet to try to download the driver.

Can you try to change your emulated NIC model in the Network section of the Virtual Machine configuration?