You need to clear the Java cache. To clear the Java Plug-in cache:

• Click Start > Control Panel.
  
• Double-click the Java icon in the control panel.
  The Java Control Panel appears.
  
  
• Click Settings under Temporary Internet Files.
  The Temporary Files Settings dialog box appears.
  
  
• Click Delete Files.
  The Delete Temporary Files dialog box appears.

There are three options on this window to clear the cache.

• Delete Files
• View Applications
• View Applets
  
• Click OK on Delete Temporary Files window.
  Note: This deletes all the Downloaded Applications and Applets from the cache.
  
• Click OK on Temporary Files Settings window.

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Can you please do the following.

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Scan with HijackThis and then place a check next to all the following, if present:


R3 - URLSearchHook: (no name) - {E38FA08E-F56A-4169-ABF5-5C71E3C153A1} - (no file)

O9 - Extra button: SmartShopper - Compare product prices - {3CC3D8FE-F0E0-4dd1-A69A-8C56BCC7BEBF} - C:\Program Files\SmartShopper\Bin\2.5.0\SmrtShpr.dll (file missing)
O9 - Extra button: SmartShopper - Compare travel rates - {3CC3D8FE-F0E0-4dd1-A69A-8C56BCC7BEC0} - C:\Program Files\SmartShopper\Bin\2.5.0\SmrtShpr.dll (file missing)

O15 - Trusted Zone: *.antimalwareguard.com
O15 - Trusted Zone: *.gomyhit.com
O15 - Trusted Zone: *.antimalwareguard.com (HKLM)
O15 - Trusted Zone: *.gomyhit.com (HKLM)


Now, close all instances of Internet Explorer and any other windows you have open except HiJackThis, click "Fix checked".

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Reboot.

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After rebooting, rescan with hijackthis and post back a new log. Please let me know how your pc is now.