Day 84 - Lagging Computer

:These days, I do not know what is wrong with my computer, but it is really slow and lags a lot. If the computer originally can load one page in 5 second, now, it probably takes like 20 seconds. Sometimes, it is not that the web page don't load, but the web page just stops. Every time, even if I close the whole thing and reopen, it is still the same. This computer is only about one year old, but last time, my dad changed something in it, and it becomes more and more like this. I hope I can live through this and then I might change to a new computer.