First of all, I tried McAfee Virtual Technicien and it told me : Product Upgrade Required
Product Name : Total Protection Service - Agent Product Version : 18.104.22.1681
Do I have to install update ?
The real problem is :
My cpu is at 100% for 30 second by MyAgtsvc process (Memory used up to 235 mo) and after McShield freeze the computer for 10 seconds when windows start.
After I have a lot of cpu spiking and it makes my computer almost unusable.
I thougt it was another software that cause the problem. So I made a fresh windows XP SP3 installation and the problem still there. I've got a problem with CabInstaller the first time, I installed Mcafee. So I try to do the solution there : https://kc.mcafee.com/corporate/index?page=content&id=KB55273 But everything was fine in the regestry.