I work on an x86 pc and use .NET4.0 (same probelem with 3.5) in VS2010. When I make a new Project (e.g. WinFormsApp), the first thing I want to do is to change the target pl
To change target platform do the following:
[1.] Open the configuration manager
[2.] In platforms, select new.
[3.] New platform select x64 or you need, in "copy settings from" select "Any CPU" or "Empty", and uncheck the "Create new solution platforms"
source: ericklan.com