My pc is having problems ( all applications not responding )

mamalrlr

Commendable
Nov 12, 2017
58
0
1,530
Hello,
That's now 3 days that my pc is having some problems which are :
- All applications aren't responding ( like 1 time each 2 minutes )
- Sometimes, the pc is doing the sound it is doing on startup ( not the bios sound but the sound before the bios, at the really start [might be psu idk ] ) Randomly each 5-10 minutes
- Everything is also really lagging
I already tried to reinstall Windows.
I would like to know what I need to change in my pc ( psu, hdd, ram,..)because this is really annoying.
Specs :
GPU : Nvidia Geforce Gtx 970
CPU : Intel core i7-3770k
PSU : An advance one : https://gyazo.com/2798e77a66690f43a5040cb9e556ffc7
RAM : 16 gb ( 3 same 4gb ones and another 4gb but different one )
Running on Windows 7.
Thanks for your help
 

mamalrlr

Commendable
Nov 12, 2017
58
0
1,530
Hello,
I already ran malware scan and there's nothing.
For the temps, CPU is at 44°C and GPU is at 29°C.
There are 2go ram used and idk how to see the disk ( in the ressources monitor, if its here, the disk is going between 0 and 4 Mo on the left and 1-5% on the right )
Thanks
 

mamalrlr

Commendable
Nov 12, 2017
58
0
1,530
Wow, it just made a kind of siren / alarm sound ( not the audio but the pc itself )
Shutting it down, and waiting for your answers ( honestly it is scary )