You still have some Norton's leftovers.
Download, and run Norton Removal Tool: Download and run the Norton Removal Tool
Also, HJT doesn't show Avast running, so make sure, after running following Combofix script, and before running HJT again, re-enable Avast.
1. Please open Notepad- Click Start , then Run
- Type notepad .exe in the Run Box.
2. Now copy/paste the entire content of the codebox below into the Notepad window:
Code:
File::
c:\windows\system32\drivers\pgwvcnu.sys
Folder::
c:\program files\Symantec AntiVirus
Driver::
lwperpfa
Registry::
RegLockDel::
3. Save the above as CFScript.txt
4. Then drag the CFScript.txt into ComboFix.exe as depicted in the animation below. This will start ComboFix again.

5. After reboot, (in case it asks to reboot), please post the following reports/logs into your next reply:- Combofix.txt
- A new HijackThis log.