Ok I tried something different and I think we are progressing. I tought ZA couldn't be the problem because even when ZA was turned off my pc would reboot. But tonight I completely uninstalled ZA. I then turned web shield back on. From then I've been loading web pages after web pages. It's been ten minutes and I can't seem to be able to make it crash. I was able to crash it within 30 sec before...
So I'll take cvsa advice and install ZA 5.5.
Does anyone know how safe it is to run an outdated version of ZA or even better does anyone have an idea on how to solve the conflict between those two applications?
Edited to answer TECH questions:
Do you have (or had) any other antivirus installed?
No other AV were installed
Did you disable avast! to install ZA?
I can't remember if I installed ZA or Avast first. For future references what is the right procedure to folow? Install avast, disable it then install ZA?
Any other security program that we must take care (ProcessGuard, for instance)?
I don't thinks so. This is a list of what was running before I tried to crash my system
Process PID CPU Description Company Name
System Idle Process 0 97.69
Interrupts n/a 0.77 Hardware Interrupts
DPCs n/a Deferred Procedure Calls
System 4 0.77
smss.exe 460 Gestionnaire de session Windows NT Microsoft Corporation
csrss.exe 508 Client Server Runtime Process Microsoft Corporation
winlogon.exe 532 Application d'ouverture de session Windows NT Microsoft Corporation
services.exe 576 Applications Services et Contrôleur Microsoft Corporation
ati2evxx.exe 776 ATI External Event Utility EXE Module ATI Technologies Inc.
svchost.exe 792 Generic Host Process for Win32 Services Microsoft Corporation
svchost.exe 844 Generic Host Process for Win32 Services Microsoft Corporation
svchost.exe 908 Generic Host Process for Win32 Services Microsoft Corporation
wscntfy.exe 1264 Windows Security Center Notification App Microsoft Corporation
svchost.exe 996 Generic Host Process for Win32 Services Microsoft Corporation
svchost.exe 1028 Generic Host Process for Win32 Services Microsoft Corporation
spoolsv.exe 1216 Spooler SubSystem App Microsoft Corporation
aswUpdSv.exe 1788
ashServ.exe 1804 avast! antivirus service
SMAgent.exe 1944 SoundMAX service agent component Analog Devices, Inc.
wdfmgr.exe 264 Windows User Mode Driver Manager Microsoft Corporation
ashMaiSv.exe 1312 avast! e-Mail Scanner Service ALWIL Software
alg.exe 1928 Application Layer Gateway Service Microsoft Corporation
svchost.exe 2384 Generic Host Process for Win32 Services Microsoft Corporation
ashWebSv.exe 1184 avast! Web Scanner ALWIL Software
svchost.exe 1400 Generic Host Process for Win32 Services Microsoft Corporation
lsass.exe 596 LSA Shell (Export Version) Microsoft Corporation
ati2evxx.exe 1380 ATI External Event Utility EXE Module ATI Technologies Inc.
explorer.exe 1476 Explorateur Windows Microsoft Corporation
ashDisp.exe 1568 avast! service GUI component
ctfmon.exe 1600 CTF Loader Microsoft Corporation
iexplore.exe 3288 Internet Explorer Microsoft Corporation
procexp.exe 580 0.77 Sysinternals Process Explorer Sysinternals
Process: Procexp Pid: -2
Type Name