Windows 2012 64bit does not work

[nubbix]

Hello everyone, this is my first post in here.

So I downloaded the virtualbox as I have done so many times before when a project is needed.
Just love the program, but this time I find it very frustrating.

I need to install Windows 2012 R2 Server with GUI for a class project, but after downloading the trail version from Microsoft
I started to install it without success.

Installed a new server from the list under Windows 2012 64bit and made the memory size 4096 and the virtual hard drive 80GB
Also did go into the settings and turned off Auto Capture and set the network card to bridge.

Thats for the configuring

I then started the vm and chose the downloaded ISO file and went on with the installation.
You can rule out the iso file as I have used it to install it on another computer, so I know it works.

Anway, found my self waiting through the "aquiering files download" and then when it started to install, I got an error message
telling me that the ISO is currupt..

Why and how do I tackle this issue? Are there any necessary settings I need to configure or purhaps have forgotten?

[BillG]

If the ISO is corrupt, it is useless. You only course of action is to do the download again. It is not a VirtualBox problem.

[mpack]

Check the MD5 checksum. That will tell you whether the ISO is corrupt. Also check the file size - it should be a multiple of 512 bytes.

[nubbix]

I will try to download again, file size where 4.2
Kinda strange it work in real and not in vm though