hey there,
two days ago I purchased avast internet security and installed it. when it asked for a restart I did so and now when windows (I am using windows 7) starts up, the windows interface doesnt launch properly. only one explorer window pops up and I have to start the task manager and create a task (explorer.exe) by hand to get the windows gui.
any ideas what is causing this? I was using the free avast version with no problems before.
cheers,
ello
Did you a clean install of Internet Security? Or have you upgraded over your Free Edition?
DJBone
i have installed it over my free version
Then try a clean install:
1 Download latest stable version of avast: http://www.avast.com/download-software
2 Uninstall avast.
3 http://www.avast.com/uninstall-utility (note the Windows Safe Mode detail).
4 Run aswclear several times, for each version / edition of avast ever installed or updated to in your system.
5 Install avast and reboot after the installation finishes.
6 Let avast update itself (do not force it).
7 Report back whichever the result.
DJBone
okay I’ve seen that before, that’s a case where you’re gonna have to go into safe mode, uninstall Avast, reboot, re-install, reboot, you’re done.
Don’t know why this happens off and on, either explorer breaks or you can’t login at all. I’ve seen that with Comodo too.
This time if you got a license, install AIS directly 
thank you both. i’ll try that. hope it works
hi, now i did the thing you mentioned but the problem remains. is this any windows setting that could have been set accidentally?
Do you have any other security related software installed? Or was something installed before?
DJBone
i am using spybot search and destroy, too
btw, it seemed that my computer has been infected by something, because somehow my website was infected with a malware which put the following into every html file:
div.pofasdfhg{z-index:-1;position:absolute;left:0;top:0;opacity:0.0;filter:alpha(opacity=0);-moz-opacity:0;}
thats mostly the reason why i bought the full avast version.
could it be that a virus hides itself so avast cannot find it?
Could you please deinstall Spybot, restart your computer and post the result?
DJBone
that didnt change anything… what could it be. i found another thread on the web where someone had the same problem. but other than here he found a virus and removing it solved everything
Did you ran a Boot Time Scan with avast?
DJBone
yes, i did this last night.
And was anything found (just for clarification)?
DJBone
no… thats the problem. my provider told me that it could be my pc is infected. but what am i supposed to do if nothing is found?
i just had a look at the window event messages and found some errors:
Aufgrund der Inkompatibilität mit diesem System wurde \SystemRoot\SysWow64\Drivers\hwinterface.sys nicht geladen. Wenden Sie sich an den Softwarehersteller, um eine kompatible Version des Treibers zu erhalten.
Das WLAN-Erweiterungsmodul konnte nicht gestartet werden.Modulpfad: C:\Windows\system32\athExt.dll
Fehlercode: 126
Der Dienst "Net.Tcp-Listeneradapter" ist vom Dienst "Net.Tcp-Portfreigabedienst" abhängig, der aufgrund folgenden Fehlers nicht gestartet wurde: Der angegebene Dienst kann nicht gestartet werden. Er ist deaktiviert oder nicht mit aktivierten Geräten verbunden.
TabletService Error: Could not init tablet driver
Das Laden folgender Boot- oder Systemstarttreiber ist fehlgeschlagen: hwinterface
Durch die Berechtigungseinstellungen (Anwendungsspezifisch) wird der SID (S-1-5-18) für Benutzer NT-AUTORITÄT\SYSTEM von Adresse LocalHost (unter Verwendung von LRPC) keine Berechtigung zum Start (Lokal) für die COM-Serveranwendung mit CLSID {C97FCC79-E628-407D-AE68-A06AD6D8B4D1} und APPID {344ED43D-D086-4961-86A6-1106F4ACAD9B} gewährt. Die Sicherheitsberechtigung kann mit dem Verwaltungsprogramm für Komponentendienste geändert werden.
Dem Computer wurde (vom DHCP-Server) keine Adresse aus dem Netzwerk für die Netzwerkkarte mit der Netzwerkadresse 0x52E6FC8B0323 zugewiesen. Fehler: 0x79. Der Computer versucht, weiterhin selbständig eine Adresse vom Netzwerkadressserver (DHCP-Server) abzurufen.
could any of those be related?
Then you maybe could try avast! Antirootkit: http://public.avast.com/~gmerek/aswMBR.exe
Download, execute and run a Quick-Scan. This could take several minutes. Don’t forget to save the Logfile after scanning.
DJBone
thank you. i’ll try that right now…
Ok. Please report back the result.
DJBone
oh… it just found something File: C:\Users\Ello\AppData\Local\TempDIR\BetterInstaller.exe infected win32 … the rest is not visible within the aswMBR window
i guess i need to have some patience and wait for it to finish. i guess the complete message is saved in the logfile later?
edit: if i scan this file with avast internet security nothing is found…
Yes, it is.
DJBone