My pc is freezing and requires restart

[Bigbale11]

Hi ,
My new built pc is freezing after about 4 to 6 hours it starts slowing down then it freezes
Then i'm obliged to gard reset the computer
When it lunches again all is ok
But the problem show up again after 4 hours
My pc specs :
Intel core i7 4790
Msi z87-g43 gaming
Memory ddrs3 4 gb
Graphics nvidia gtx 750 1024 mbytes
Hdd 1 tera bytes
Os windows 10

 

[Stanstar22]

maybe a virus? If so and it cant be removed try to use a system restore to when this wasn't happening.