I have a windows and ubuntu dual boot system in which the windows installation has gone corrupt. Pls. see the BP discussion here for details. Hence I need to reinstall it. After windows reinstall, the grub will go corrupt and I will need to fix it. My query is that if I use a Ubuntu 16.04 installation pendrive, will it detect the old installation, update my present 15.10 install and repair grub at the same time?