Explorer.exe won't start unless do it manual in task manager

I just used a small piece of software from Adobe to clean up the left over part of Adobe Photoshop CS3 trial version to go for a official one. I install successfully and restart my PC but Explorer won't start until I open a new task manually in Task Manager. I don't why, I think that I might damage the Registry while try to clean up the left behind part of PS CS3. Does anybody have some idea for this kinda situation?
Here is my HJT log file
Thanks for you time!!

Check the Shell value for Winlogon in your registry. Under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
should show:

Shell REG_SZ explorer.exe

Or download this tool: http://www.dougknox.com/xp/utils/XP_FixLogon.zip
This utility checks for the correct GINA value in the Registry and will allow you to restore it, if its incorrect.

Note: I have not looked at the log

kimsland said:

Check the Shell value for Winlogon in your registry. Under HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon
should show:

Shell REG_SZ explorer.exe

This utility checks for the correct GINA value in the Registry and will allow you to restore it, if its incorrect.

Note: I have not looked at the log

Click to expand...

I fixed the explorer thing already thank to you help but there is one more issue. I don't know why vista keep updating this "Security Update for Microsoft XML Core Services 4.0 Service Pack 2 (KB936181)" Even I installed it the next time I start my computer it keep asking me for install this update. Beside that everything seems to be fine.