C'est bon j'ai réussi à faire tout ce que tu me demandais, enfin!

Voici le rapport :
Fix result of Farbar Recovery Tool (FRST written by Farbar) (x64) Version: 02-10-2013
Ran by admin at 2013-11-22 21:21:59 Run:1
Running from C:\Users\admin\Desktop
Boot Mode: Normal
==============================================
Content of fixlist:
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start
HKCU\Software\Microsoft\Internet Explorer\Main,Start Page =
http://mozillafirefox/Toolbar: HKCU - No Name - {7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} - No File
FF SearchPlugin: C:\Program Files (x86)\mozilla firefox\browser\searchplugins\avg-secure-search.xml
S2 vToolbarUpdater17.0.12; C:\Program Files (x86)\Common Files\AVG Secure Search\vToolbarUpdater\17.0.12\ToolbarUpdater.exe
C:\Program Files (x86)\Common Files\AVG Secure Search
R1 avgtp; C:\Windows\system32\drivers\avgtpx64.sys [46368 2013-10-02] (AVG Technologies)
Task: {1696E527-D846-481C-A41D-3CEF15662E3C} - \DealPlyUpdate No Task File
Task: {AAB3C26F-93B6-4713-A9A3-8C794715C60D} - \DealPly No Task File
end
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HKCU\Software\Microsoft\Internet Explorer\Main\\Start Page => Value was restored successfully.
HKCU\Software\Microsoft\Internet Explorer\Toolbar\WebBrowser\\{7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} => Value deleted successfully.
HKCR\CLSID\{7FEBEFE3-6B19-4349-98D2-FFB09D4B49CA} => Key not found.
C:\Program Files (x86)\mozilla firefox\browser\searchplugins\avg-secure-search.xml => Moved successfully.
vToolbarUpdater17.0.12 => Service deleted successfully.
"C:\Program Files (x86)\Common Files\AVG Secure Search" => File/Directory not found.
avgtp => Service deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Plain\{1696E527-D846-481C-A41D-3CEF15662E3C} => Key deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{1696E527-D846-481C-A41D-3CEF15662E3C} => Key deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\DealPlyUpdate => Key deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Plain\{AAB3C26F-93B6-4713-A9A3-8C794715C60D} => Key deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tasks\{AAB3C26F-93B6-4713-A9A3-8C794715C60D} => Key deleted successfully.
HKLM\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Schedule\TaskCache\Tree\DealPly => Key deleted successfully.
The system needs a manual reboot.
==== End of Fixlog ====