High DPC and can't find the "true" cause

Hi,

After searching and searching i finally gave up and decided to ask directly. Basically I felt like my computer was kinda slow since i reinstalled windows and updated everything, mainly getting into a League of Legends match which my computer used to do very quickly, but now i'm one of the last to load.

I decided to use "DPC Latency Checker" to see if it was alright, the result was "Picture 1", so after a bit of research i found that some drivers can do that, so i starting disabling and checking if it was better and it seems disabling the network driver makes "Picture 2" but i don't want to have it always offline, so i now used "LatencyMon" and the result is pretty much always like "Picture 3" where USBPORT.sys dominates, I tried reinstalling the network driver and the Intel Chipset USB drivers (there are 2) but nothing.

Thank you for your help in advance, like... a big thank you if some more info. is needed just ask

P.S. I tried using the xperf commands but i can't seem to make them work :/ and in Picture 2, when i was testing i think it was all green

Edit: I actually thought it would say the name of the picture

Picture 1: http://www.zlung.com/imgs/6059357Picture_1.jpg
Picture 2: http://www.zlung.com/imgs/9017625Picture_2.jpg
Picture 3: http://www.zlung.com/imgs/5631647Picture_3.jpg

Hey,

So i went to my BIOS and started looking for the options you told me to disable, i only found the "IEST", the C1E i looked but couldn't find it.

As for "IEST" i disabled it but there are still spikes in my DPC. Do you need more information or something else ?

I was thinking also that the xperf command could help if i could do it right no ?
I used this guide for xperf:
How to Diagnose and Fix High DPC Latency Issues with WPA (Windows Vista/7/8) - Sysnative Forums

As I was writing this i tried again and got it to work till the moment when i have to put "xperf %userprofile%\Desktop\trace.etl" on the cmd which gives me an error, i tried opening manually through the Windows Performance Analyzer and i found the DPC graphics but i can't understand them, in the guide it shows a summary table, i didn't find that. I was thinking of showing it to see if you know what's there but in the cmd it said it has personal informations, how do i do it ?

Run Latency Mon and see what it says. Latency Mon will flood you with info, but maybe it will show what is really causing it.

Resplendence Software - LatencyMon: suitability checker for real-time audio and other tasks

Sound and networking can go hand in hand. Sound is a low priority device in Windows, Networking is high priority. Wi-Fi can cause audio dropouts, stuttering, pops, clicks, etc. Sound is on a shared Interrupt (IRQ) with a higher priority device and depending on what that higher priority device is, there can be problems.

In the first post i have a picture (3rd one) of what Latency Mon tells me, do you wish i let it run for a certain period of time ?

I have a Language Class that i have to go now, if you wish i run it for a long time i can only do it after :/




EDIT: I'll let it run for more 10 min (15 total) and send here the images of the 5 tabs