My computer lags/stutter then freezes

[stormasiking]

Everytime I play some game like Overwatch, Killing Floor 2, Battlerite, League of legends, etc... the game freezes and after a while it crashes. Also rarely my computer is lagging even on desktop and then freezes. I installed another OS, I was on win 7 now I got win 10, problem's the same, I also cleaned up the computer and still no results. Any ideas?

P.S: Recently it started lagging from the start up screen, but after a reset it comes back to normal.

specs: CPU : Intel i5-3350P 3.10GHz
GPU: Nvidia Gefore GTX 650 1 GB x64
Motherboard: Asrock H61M-VG3 M80-38016901099
RAM: 6 GB DDR3
OS: Windows 10 x64
HDD: Standard Disk Model ST1000DM003-1CH162 1TB

 

[jojesa]

Did you perform a Windows 10 clean installation?
What do you mean by "I also cleaned up the computer"?

 

[stormasiking]

Did you perform a Windows 10 clean installation?
What do you mean by "I also cleaned up the computer"?

Yes I did a clean installation.
And by cleaned up, I mean cleaned up memory/unwanted programs/cache (before performing the re-installation) and also cleaned it up from dust.

 

[jojesa]

After installing Windows 10 did you also install motherboard and GPU drivers?
After installing Windows 10 when the computer started to lag, freeze and crash?
Is Windows up to date with updates?

 

[stormasiking]

I did installed the drivers
Games started to lag/crash immediately after that. About the fully computer freeze, it took some time, maybe 2 weeks? But at some point it did started to lag and crash as it used to.
Yes, Windows is up to date.

 

[Paul NZ]

And how exactly did you do a clean install?

Did you boot from the dvd or flash drive delete all partitions then install windows?

Because you dont have to do this I mean cleaned up memory/unwanted programs/cache (before performing the re-installation) and also cleaned it up from dust.

Because once you do the above, everything is wiped. That doesnt sound like a clean install to me

 

[stormasiking]

And how exactly did you do a clean install?

Did you boot from the dvd or flash drive delete all partitions then install windows?

Because you dont have to do this I mean cleaned up memory/unwanted programs/cache (before performing the re-installation) and also cleaned it up from dust.

Because once you do the above, everything is wiped. That doesnt sound like a clean install to me

I did the memory clean up days before installation, to check if any program of the one's I deleted was causing the problem (cause I didn't want to give up anything important from my computer), saw it didn't work so I went to the next level.

Also I did deleted all the partitions and then installed the windows like every normal people do (I think they do at least).

So trust me, it's not viruses, it's no faulty software or unwanted program.

And so I make it easier for you to help me (if you can help me of course), I already checked my RAM too and it's nothing wrong with them.

UPDATE: I bought the Windows, so it's licensed. (hope we done with the "did you really cleaned up you memory" part)

 

[jojesa]

How about your HDD and PSU.
What PSU do you have?
Run CHKDSK in the Command Prompt, to see if the HDD is the issue.
Click the Windows Key + X and select the Command Prompt (Admin) option. On the UAC pop-up click Yes.
In the Command Prompt, type 'chkdsk' leave space, then type the letter of the drive you wish to examine or repair (chkdsk C.
If you want CHKDSK to fix any errors then type the following parameters separated by a space each: '/f /r /x' (chkdsk C: /f /r /x)
The boot drive cannot be examine while the computer is in use, so you will be ask to run the command before the next boot.

 

[marksavio]

you may want to purchase a 2x4Gb/2x8Gb 1600Mhz DDR3 to replace your current RAM.