If someone with a little experience with Linux, he may want to uninstall it. he could remove the partitions of Linux and there for the Grub stop to work, and he blame the linux that destroy the windows, and after that. he will format the whole hard disk to bring windows back… (It happen to my friend).

There for to prevent that, I suggest that the installation of Linux will copy and save the MBR of windows, and will added option to remove linux and restore the original windows MBR.

It will make Linux more friendly if It will be easy to remove as to install.