Pc freeze problem

So this started like last week where i get these small lags when my pc freezes for like 1-3 seconds. It can happen when i play games or just browsing. It happens probably like 2 times every hour. This is a problem for me because when i play csgo and im shooting towards someone and everything just lags and i die. It's a small problem but it is really frustrating. And just today while i was playing Arma 3 my pc completely froze and i had to restart it by holding down the button on the case
I have been googling for solutions but i haven't found anyone yet.

Specs:
Nvidia gtx 760 2gb
i5-4460 3.2 GHz
Seagate SSHD 1TB
500W Corsair

for the graphics card, yes, i dont really know how to update the BIOS or the harddrive but i will try to find it out, ty for your reply

edit: my bios and my harddrive is both up to date.

Go to the Nvidea website>forum and search for nvlddmkm and find the post by jimbonbon. It is quite lengthy but comprehensive and may have a possible solution for your problem

i have never received that message where my video card crashes so

What error codes do you get in Event viewer>Custom views>Administrative events?Have you selected each one and read the details.then gone to ONLINE HELP?What solution,if any,did that give?Have you read the article given in my previous suggestion?There are many variables in this type of problem and rarely a quick fix.Trial and error is the normal way.

i think it might be solved, i dont remember how i fixed it though -.-