Laptop fan constantly blowing hard, sort of overheating and random shutdowns

[Carolina_2]

It shutdown a few hours ago and the fan keeps blowing hair so intensly like it was running heavy stuff, it won't blow slowly/softly for a sec...! (no weird sounds, sounds quite normal but intense..)
I know there is a lot of dust sticked to the fan itself but there is not much i can do because i can reach that dust with "anything" to clean it up even if the issue is just dust..
What should it do can i open the case and clean/touch it? i have no idea but this is driving me mad..
This whole time i was running only firefox.. and in speedfan the temperatures were reaching 85º the max but a lot of time and its cold where i am and i never see it reach 80º+ even during summer - where gets 40º - and running lot of things.
specs:

 

[jasonkaler]

It shutdown a few hours ago and the fan keeps blowing hair so intensly like it was running heavy stuff, it won't blow slowly/softly for a sec...! (no weird sounds, sounds quite normal but intense..)
I know there is a lot of dust sticked to the fan itself but there is not much i can do because i can reach that dust with "anything" to clean it up even if the issue is just dust..
What should it do can i open the case and clean/touch it? i have no idea but this is driving me mad..
This whole time i was running only firefox.. and in speedfan the temperatures were reaching 85º the max but a lot of time and its cold where i am and i never see it reach 80º+ even during summer - where gets 40º - and running lot of things.
specs:

Opening up a laptop is only a good idea if you're sure you won't damage anything in the process.
Fortunately you can probably find a video on youtube that will show you exactly how, for your model of laptop.
Getting rid of all the dust might help.

How old is your laptop? I do not see a battery temperature there, and this would be my first guess as to what is wrong.
If it's more than about 5 years old and seems to have low battery life then it's time to change your battery. A bad batter will heat up excessively when charging / discharging.

 

[Carolina_2]

It shutdown a few hours ago and the fan keeps blowing hair so intensly like it was running heavy stuff, it won't blow slowly/softly for a sec...! (no weird sounds, sounds quite normal but intense..)
I know there is a lot of dust sticked to the fan itself but there is not much i can do because i can reach that dust with "anything" to clean it up even if the issue is just dust..
What should it do can i open the case and clean/touch it? i have no idea but this is driving me mad..
This whole time i was running only firefox.. and in speedfan the temperatures were reaching 85º the max but a lot of time and its cold where i am and i never see it reach 80º+ even during summer - where gets 40º - and running lot of things.
specs:

Opening up a laptop is only a good idea if you're sure you won't damage anything in the process.
Fortunately you can probably find a video on youtube that will show you exactly how, for your model of laptop.
Getting rid of all the dust might help.

How old is your laptop? I do not see a battery temperature there, and this would be my first guess as to what is wrong.
If it's more than about 5 years old and seems to have low battery life then it's time to change your battery. A bad batter will heat up excessively when charging / discharging.

Hi there thanks for reply. Well it can be the battery because it broke around 4 years ago and since then i only use the power cord. Yes it's pretty old laptop almost 7 years old, and i know that's slowly dying i.e the gpu gives me a burn in if i stay too long on apps that are heavy for the gpu. So i only use this laptop bc until i save to buy a good desktop, but i didn't want to throw it away if i can fix whatever is going on. (since it worked nicely even with the slowly dying gpu through a year)

There is a pc store next to me, do you think i could ask them to that job of opening the case and clean the fan up, since i can cleary say i would have no idea of what i'd be doing, be doing it myself, even with a tutorial i'm afraid to mess all up.