No mouse while installing Windows 7 on Mac

[ghost12]

So, yesterday I decided to install Windows 7 on a bootable USB flash drive and I went to bootcamp and checked the first two options to install Windows 7 on my USB and to download the support files. When it finished it said that I have to download the support files by myself. So I just ignored that and tried to restart my laptop and tried to install the Windows but there was no mouse pointer and keyboard is not recognized. Can someone tell me what should I do ?

 

[Gjwilly]

Well first off, you can't use Bootcamp Assistant to install Windows onto an external drive. Only internal drives are supported.
You should also let Bootcamp Assistant create the Windows installer. That should be one of the checkboxes. You tell BA where your Windows install source file is (ISO file or DVD) and you tell it to download the support software and then BA will create a new Windows installer with the Mac mouse/keyboard support built-in. That installer gets burnt to a DVD or a USB stick and you boot off of it.
The USB stick has to be formatted as FAT and partitioned as MBR.

 

[ghost12]

Well first off, you can't use Bootcamp Assistant to install Windows onto an external drive. Only internal drives are supported.
You should also let Bootcamp Assistant create the Windows installer. That should be one of the checkboxes. You tell BA where your Windows install source file is (ISO file or DVD) and you tell it to download the support software and then BA will create a new Windows installer with the Mac mouse/keyboard support built-in. That installer gets burnt to a DVD or a USB stick and you boot off of it.
The USB stick has to be formatted as FAT and partitioned as MBR.

I did exactly what you said. I went through the following steps:
1: I went to bootcamp wizard and checked the first two options to download the installer on my usb flash drive and to download the supported files (drivers) for Windows 7
2:Restarted my laptop and installed Windows 7 successfully, mouse and keyboard are working perfectly except one thing. both usb ports aren't recognized. As a result, I am not able to download the wifi and sound etc. drivers

so currently the main problem is I cant use my flash drive on the Windows side.

 

[Gjwilly]

That's weird. The wifi and sound drivers should have been installed during the Windows install. Down in the lower right corner by the clock do you have an icon for Bootcamp support?
If not you should try a different USB stick and make sure it's USB 2.0. A fresh Windows 7 install doesn't support USB 3.