So, I'm not
Sherlock Holmes, but after almost two months I finally found out what the real problem with avast.
It's called DPC (Deferred Procedure Calls).
look at the undeniable proof.
Photo 1:this photo you can clearly see how the DPC is absurdly high, the problem appears only 9 hours after leaving the avast using the scan of P2P shield.
That's what causes the problem of sound and video on youtube and on the computer.
My home PC is connected to 6 days a week 24 hours a day is why I can feel these problems more than others that turn off your PC.
The DPC is extremely high and could have been much higher if I had done more testing for a few hours.
Photo 2:This picture is clear and transparent what happens when
i turn off all the shields of avast, the DPC returns to normal and no sound problems, end more, some times the mouse pointer jumping from one point to another in screen.
I think all avast is causing the high DPC only to be
turned on and this problem its worse even more if you use
P2P shield or full system scan.
Test the DPC latency.if you want to test it on your PC just download the DPC Latency Checker in this link:
http://www.thesycon.de/deu/latency_check.shtmldont need install just download end use,put your tests here,iam using Windows XP/sp3/1G Ram/processor 3.2 pentium 4.
Persistent problem.this problem with DPC is going on since the final version of avast was launched.
No one from ALWIL want to resolve it, and the worst part is that it must have thousands of users with this same problem and they dont have faintest idea what is avast which is causing sound problems in they computers, sound problems,slow system and the mouse pointer jumping from one point to another in screen.
I do not recommend to exchange of antivirus, avast still the best in the world but version 5 still far from the high reputation of version 4.8.
SolutionIf anyone knows the phone of David Copperfield or Houdini please call them to do a magic to FIX this problem.
developers not Seems to be worried with the largest issue of avast at all times.
I hope in the next verssion this error in DPC ends.
if you are a visitor you will only see the photos if you register on the forum, is free,easy end fast.