Lookingways to fix my laptop which is underperforming????

[Gamersbuff]

Hello guys i bought a laptop a couple months ago and i just keep having the same problem.Every time i install an nvidia driver i notice that in the first few days the laptop is performing as it should with good fps(e.g league of legends stable 120fps) and then suddenly drops to 40-60 which is really annoying and this happens to every game.I have tried every obvious and know reason like putting my laptop in high performance or selecting nvdia gpu from control panel.I was forced deleting and installing nvidia drivers to have the normal performance but i ve now downloaded the new windows 10 and cant find the place to delete the driver and install it again but anyway

My laptop spec
Cpu:I7-4510U
Gpu 840m
Ram: 8gb

 

[DeathRabit]

Try use DDU to delete drivers http/www.guru3d.com/files-details/display-driver-uninstaller-download.html

 

[velo3100]

What are the temps while playing games?

 

[Gamersbuff]

Try use DDU to delete drivers http/www.guru3d.com/files-details/display-driver-uninstaller-download.html

What are the temps while playing games?

My temps are 60-68 the most when the weather is to hot on gpu as for deleting i ve tried that and i didnt see a difference'

 

[DeathRabit]

I forget about instruction for cleaning drivers.

Use this http/www.guru3d.com/content-page/guru3d-driver-sweeper.html *this program linked by me.
And follow instruction :
Use the official uninstaller(s) of the driver(s) you want to uninstall.
Reboot your PC in Safe Mode.
Run Driver Sweeper and select what to clean.
Analyse lists all the entries possible to remove, cleaning removes the entries selected.
Reboot to normal mode.
Install fresh drivers.

 

[velo3100]

First try and reinstall the drivers to make sure it is not a software problem. If it is not then I would check that the fans are not broken or if the thermal paste hasn't worn out. It could be that the cpu and gpu are throttling under the heat.