How to take care of gaming laptop?

Well i have a lenovo y410p it runs games great but i want it to continue its performance how can i take care of it? Btw how do you defrag your files or w.e on your computer because i heard you need to do that once a month or something. I have gamebooster so i can defrag games from there but nothing else. I have avast anti virus. How can i prevent computer from slowing down. Also i have a issue google chrome slowes down sometimes or just lags how can i fix this is it a malaware issue if so how can i prevent this. I want my pc to stay fast.

1. Avast is junk download windows defender. (totally free)
2. Download malware bites.
3. Download Adblocker
4. When downloading programs make SURE no extra toolbars or anything is being downloaded.
5. If it's really bad search a youtube tutorial on how to re install Windows.

Get an ssd and use avast its the best belive me. CHeck the video it will also unlock your cores with are originally locked by manufacturers. So until now dis is my best video

and if you wannna boost your laptop or maintain it come on my video here

I like Moshin's answer. Also, if things are very slow, I recommend buying an SSD. I bought 3 SSD's for all my computers and I love it. Makes everything so fast.

Edit: And Connor's answer is good too.

Try this for £15 bit.ly/1iaiOb9
Worked for me.