How to improve laptop performance?

Question

laptops

The question is of course off topic, but still, maybe you can tell me.
It seems to be a powerful laptop, but it often slows down a lot, freezes constantly.
Disk loading is always 99-100%.
Cleaning the disk from garbage, defragmenting, cleaning the registry does not help, what else can I do?
It’s almost impossible to use Yandex browser, Google Chrome, when several tabs are open, and you want to switch, for example, to another tab, then when you switch for 5-6 seconds, it’s just an empty tab and only then it appears, so you have to reload the page.
Processor INtel(R) Core(TM) i7-3630QM CPU @2.40GHz
RAM 8.00 GB( 7.89 GB available)
System type 64-bit
windows 8.1

Answer 1

>windows 8.1
It's time to reinstall windows
and switch to linux

Answer 2

cut down all unnecessary services / disassemble and vacuum / install 7 Windows

Answer 3

The hardware solution is to put an SSD under the system.

Answer 4

windows.microsoft.com/en-us/windows-8/restore-refr...

Answer 5

install systemexplorer - and at the moment of freezing, see which process eats memory.
from here you need to continue to "dance"

Answer 6

buy ssd and buy more memory up to 16 gigabytes