guys:

di gumagana CTRL keys(Win 7). Test ko sa notepad...type random keys then highlight ko...tapos after pressing CTRL + C;

na e-erase yung typed keys then replaced by only "C", as if di gumana yung CTRL key. Same din sa CTRL V. Di ko ma access shortcut copy-paste shortcuts. tried already uninstalling the keyboard drivers, wala pa rin.