Hijacker Spyware Information: CWS.SmartSearch :'(
This is a hijacker application. Hijackers take control of your web browser's settings, and usually change your homepage, search page or other default pages to point to web sites owned by the hijacker. Since the hijackers can make money based on the number of visits to their web sites, they benefit from forcing you to view their web sites each time your web browser opens.
Hijackers don't normally damage your computer or steal your personal information.
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I notice that my explorer does not load by itself and I have to run thru Task Manager..Sometimes when I'm using alt+tab there is a program running called AutoIt v3 eventhough I did not install it or anything then it does not appear also in Add/Remove Programs. I already ran Spybot Search & Destroy, CWShredder.. It erases the CWS.SmartSearch but after restarting it comes back again.
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Avast Home detected also the winlogon.exe and I tried to move it to chest but It can't move and also cannot be deleted, it keeps coming back.
Also at the start an error appears about "search"
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Here is an attached log file of HijackThis on my pc.