Hey,
so my mother's Dell Vostro 5459 laptop is very, very slow (it was never a very fast computer to begin with), i tried formatting it, no significant improvement...
the specs are:
i3 6100U,
4GB DDR3L-1600,
500GB 5400RPM sata 3 2.5" hard drive
i saw that there is only one bay for the RAM...