dude I do not know how to thank you, the fast fix (not that fast at all i have to install 8GB)fixed my problem also i wanted to use gcc compilator but if is not avalable i will use mingw dud you really helped me now i can resume my study then about the frist question i installed everything using the QT install wizard and i created the project using the QT wizard but i just tested it out (with the librarys and things) nad compiles with no problem in codeblocks and aabout the compiler enviroment i didn't setup anything i just installed QT throught the wizard, my expectation were that it install everithing that he need like codeblock IDE but anyway thanks you really helped me