i am getting this error at compile (actually this is a very simple project and the syntax is absolutely ok)
E:\\proj1\\Makefile.win [Build Error] [main.o] Error 1
The escape character in Windows is ^
. So try
C:\Users\r^&d
You can try creating another user without the ampersand, and then copying your profile to it to keep all your settings and application preferences, as well as documents.
You might want to try another build enviroment, like code:blocks which has its own internal build system. You probably want make sure you are using the latest gcc mingw compiler and build system from mingw(use their installer, I think it was http://sourceforge.net/projects/mingw/files/Installer/mingw-get-inst/mingw-get-inst-20120426/ ), and even if you don't go with code::blocks, make sure you are using the new branch of devc++ that was forked and still being developed. One last thing is if you go with code::blocks, use a nightly build in the forum, http://forums.codeblocks.org/index.php/board,20.0.html as they are much more up to date.
r&d is definitely a problem. Try surrounding it with quotes: "c:\users\r&d" and hope for the best. If it doesn't work, change the folder to something without an ampersand (you don't need to reinstall Windows for that, just create another user).