Upgrade Advauild 3.7 to Advabuild 3.7sp1

I am upgrading advabuild 3.7 to advabuild 3.7sp1 in running system. while installing, system ask for an option to replace multiple boot files (Pic attached).
if i will replace files, i may have to load backup again.
what are the consequences of both options "Yes" or "No" on upgradation??

Anybody has faced this issue ??