pennknig

You might check here as well:

REG DELETE "HKEY_CLASSES_ROOT\Drive\shellex\ContextMenuHandlers\Comodo Antivirus" /F
REG DELETE "HKEY_CLASSES_ROOT\file\shellex\ContextMenuHandlers\Comodo Antivirus" /F
REG DELETE "HKEY_CLASSES_ROOT\Folder\shellex\ContextMenuHandlers\Comodo Antivirus" /F
REG DELETE "HKEY_CURRENT_USER\Software\ComodoGroup\COMODO Internet Security" /F
REG DELETE "HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications\CFPLog" /F
REG DELETE "HKEY_CURRENT_USER\Software\Local AppWizard-Generated Applications\COMODO Internet Security - Log Viewer" /F
REG DELETE "HKEY_LOCAL_MACHINE\Sofware\Microsoft\Windows\CurrentVersion\Uninstall\Comodo Internet Security" /F
REG DELETE "HKEY_CURRENT_USER\Software\CFP\COMODO Firewall\" /F
REG DELETE "HKEY_CURRENT_USER\Software\ComodoGroup" /F

and also

HKEY_LOCAL_MACHINE\system\controlset001\enum\root\legacy_cmdhlp\0000\
HKEY_LOCAL_MACHINE\system\controlset001\enum\root\legacy_cmdguard\0000\
HKEY_LOCAL_MACHINE\system\controlset001\enum\root\legacy_cmdagent\0000\
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_cmdhlp\0000\
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_cmdguard\0000\
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_cmdagent\0000\
HKEY_LOCAL_MACHINE\system\controlset002\enum\root\legacy_cmdhlp\0000\
HKEY_LOCAL_MACHINE\system\controlset002\enum\root\legacy_cmdguard\0000\
HKEY_LOCAL_MACHINE\system\controlset002\enum\root\legacy_cmdagent\0000\
HKEY_LOCAL_MACHINE\software\Wow6432Node\comodogroup\
HKEY_LOCAL_MACHINE\software\Wow6432Node\comodogroup\CSC\
HKEY_LOCAL_MACHINE\system\controlset001\enum\root\legacy_cmdhlp\0000\
HKEY_LOCAL_MACHINE\system\controlset001\enum\root\legacy_cmdguard\0000\
HKEY_LOCAL_MACHINE\system\controlset001\enum\root\legacy_cmdagent\0000\
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_cmdhlp\0000\
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_cmdguard\0000\
HKEY_LOCAL_MACHINE\system\currentcontrolset\enum\root\legacy_cmdagent\0000\
HKEY_LOCAL_MACHINE\system\controlset002\enum\root\legacy_cmdhlp\0000\
HKEY_LOCAL_MACHINE\system\controlset002\enum\root\legacy_cmdguard\0000\
HKEY_LOCAL_MACHINE\system\controlset002\enum\root\legacy_cmdagent\0000\
HKEY_LOCAL_MACHINE\software\microsoft\windows\currentversion\shell extensions\Approved\

& more :

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_CMDAGENT
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_CMDHLP
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_CMDGUARD
HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Enum\Root\LEGACY_CMDHLP

- RegVac
- RegEdit (to manually remove leftovers keys)
- CCleaner (nothing in safe mode & then broken Windows in advanced mode)
- j16 PowerTools (nothing in safe mode & then broken even more Windows in advanced mode)
- Manually uninstall of CFP 2.x (fwconfig -uninstall -> ask to reboot -> & fwconfig & clicapi.dll are deleted)
tool found here : http://forums.comodo.com/index.php?action=dlattach;topic=5326.0;attach=1799

- removing services : CmdAgent & CmdMon

- Device Manager > View > Show Hidden Devices > Non-Plug and Play Drivers
no such thing like "Non-Plug and Play Drivers" are listed so no entries for Comodo like :

     Comodo Application Engine
     Comodo Network Engine

- WMI Service

. Stop the the WMI Service (in admin > services)
. Delete the "repository" folder in C:\windows\system32\wbem
. start the WMI Service. Starting the service rebuilds the deleted folder and the database.