Login to Central Admin and navigate to
Central Administration -> Application Management -> Manage Web Applications
Highlight the web application that you want to change and then click on "General Settings" tab on the ribbon.

Scroll to the bottom of the list and you will see the maximum upload size the default setting is 50mb this can be can set to a maximum size of 2047mb. If you try to go beyond this it does flag up and tell you that you have exceeded the Maximum size.

Central Administration -> Application Management -> Manage Web Applications
Highlight the web application that you want to change and then click on "General Settings" tab on the ribbon.

Scroll to the bottom of the list and you will see the maximum upload size the default setting is 50mb this can be can set to a maximum size of 2047mb. If you try to go beyond this it does flag up and tell you that you have exceeded the Maximum size.
