I am trying to factory reset my dell laptop running Windows 10 but it just keeps telling me theres not enough space to do it. I'm really All Things Tech-y illiterate so I did what I think is clean out everything I believe I could uninstall and clean and didn't touch system apps and whatnot( I shouldn't touch those,correct?)and yet it's still telling me there's not enough space! I bought this thing almost a year ago and have not touched it because 3 days after buying it and playing some games and stuff and letting the kids mess with it it started to run super slow...it takes about 2 minutes to load a page on my browser! So I'm hoping cleaning it will help so I can use it. I'm at a loss of what more I can do to get more space or something. Can anyone help me in a Computer For Dummys step-by-step way? Please!!!