Toshiba C55D laptop sooooo slow yet hardly used ??

[worcestersauce]

Hi all, my daughter has has this toshiba satellite laptop (C55D) for a couple of years but she has hardly ever used it, and doesnt use it much now because its soooooo slow. I've used it to test and it is seriously slow. Its windows 8.1, I did put windows 10 on it a couple of months ago, hoping it would be an improvement but it wasnt. I factory reset it, thats why its now windows 8.1, but even after the reset its still shit. She did have sims 4 on it but it didnt run very well so I uninstalled that, and apart from that she hasnt really put anything else on it.

Any advice gratefully received......is there some tuning up I can do or shall i sell it and get another?:mad-new:

[hk06]

change hard disk mayby the probleme came from