as.exe - entry point not found the procedure entry point __printf__ could not be located in the dynamic link library

Yt works early.when I try to use gcc commend it show me. I already uninstalled and re-installed gcc 4.8.

this is error:

as.exe - entry point not found
the procedure entry point __printf__ could not be located in the dynamic link library c:\mingw\bin..\lib\gcc\mingw32\4.8.1\..\..\..\..\mingw32\bin\as.exe"

this is code:

#include <stdio.h>

int main(){

}