Questo è il risultato delle due scansioni:
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Junkware Removal Tool (JRT) by Thisisu
Version: 6.0.7 (10.15.2013:3)
OS: Microsoft Windows XP x86
Ran by Desktop on 31/10/2013 at 0.32.35,50
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~~~ Services



~~~ Registry Values



~~~ Registry Keys

Successfully deleted: [Registry Key] HKEY_LOCAL_MACHINE\Software\dt soft\daemon tools toolbar
Successfully deleted: [Registry Key] HKEY_LOCAL_MACHINE\Software\Classes\installer\upgradecodes\f928123a039649549966d4c29d35b1c9



~~~ Files



~~~ Folders

Successfully deleted: [Folder] "C:\Documents and Settings\desktop\Dati applicazioni\software informer"
Successfully deleted: [Folder] "C:\Documents and Settings\desktop\appdata\locallow\datamngr"
Successfully deleted: [Folder] "C:\Programmi\eusing free registry cleaner"
Successfully deleted: [Folder] "C:\Programmi\software informer"



~~~ FireFox

Successfully deleted: [Folder] C:\Documents and Settings\desktop\Dati applicazioni\mozilla\firefox\profiles\2tbca9la.default\extensions\acec7c99-b789-494a-9cd9-cf2130be4fe2@7837d0b0-c968-42e7-b0ac-b09c864a5978.com
Successfully deleted the following from C:\Documents and Settings\desktop\Dati applicazioni\mozilla\firefox\profiles\2tbca9la.default\prefs.js

user_pref("google.toolbar.button_option.cached.gtbSearchBlogs", "<toolbarbutton xmlns=\"hxxp://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul\" id=\"gtbSearchBlogs\" t
user_pref("google.toolbar.button_option.cached.gtbSearchPhotos", "<toolbarbutton xmlns=\"hxxp://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul\" id=\"gtbSearchPhotos\"
user_pref("google.toolbar.button_option.cached.gtbSearchScholar", "<toolbarbutton xmlns=\"hxxp://www.mozilla.org/keymaster/gatekeeper/there.is.only.xul\" id=\"gtbSearchScholar
user_pref("google.toolbar.button_option.cached.gtbstoolbar-google-com_J66T77NJDBMW4FEUU7FA-xml", "<toolbarbutton xmlns=\"hxxp://www.mozilla.org/keymaster/gatekeeper/there.is.o
user_pref("google.toolbar.button_option.cached.gtbutoolbar-google-com_CHW6HL2ILDOMNY4CTR3Q-xml", "<toolbarbutton xmlns=\"hxxp://www.mozilla.org/keymaster/gatekeeper/there.is.o
user_pref("google.toolbar.button_option.cached.gtbutoolbar-google-com_SMK9RY7KF1EWTJ95ZKLT-xml", "<toolbarbutton xmlns=\"hxxp://www.mozilla.org/keymaster/gatekeeper/there.is.o
user_pref("google.toolbar.search-icon", "data:image/x-icon;base64,AAABAAIAEBAAAAEAIABoBAAAJgAAACAgAAABACAAqBAAAI4EAAAoAAAAEAAAACAAAAABACAAAAAAAAAEAAASCwAAEgsAAAAAAAAAAAAA9IVCS


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~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Scan was completed on 31/10/2013 at 0.40.05,60
End of JRT log
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Malwarebytes Anti-Malware 1.75.0.1300
www.malwarebytes.org

Versione database: v2013.10.30.07

Windows XP Service Pack 3 x86 NTFS
Internet Explorer 8.0.6001.18702
Desktop :: FRANCO [amministratore]

31/10/2013 0.49.44
mbam-log-2013-10-31 (00-49-44).txt

Tipo di scansione: Scansione completa (C:\|M:\|)
Opzioni di scansione attive: Memoria | Esecuzione automatica | Registro | File di sistema | Euristica/Extra | Euristica/Shuriken | PUP | PUM
Opzioni di scansione disattivate: P2P
Elementi esaminati: 390031
Tempo impiegato: 1 ore, 34 minuti, 39 secondi

Processi rilevati in memoria: 0
(non sono stati rilevati elementi nocivi)

Moduli di memoria rilevati: 0
(non sono stati rilevati elementi nocivi)

Chiavi di registro rilevate: 0
(non sono stati rilevati elementi nocivi)

Valori di registro rilevati: 0
(non sono stati rilevati elementi nocivi)

Voci rilevate nei dati di registro: 0
(non sono stati rilevati elementi nocivi)

Cartelle rilevate: 0
(non sono stati rilevati elementi nocivi)

File rilevati: 1
C:\Documents and Settings\desktop\Impostazioni locali\TempDIR\BetterInstaller.exe (PUP.Optional.Somoto.A) -> Spostato in quarantena ed eliminato con successo.

(fine)

******************************************************************************
Cosa ne pensi?
Ciao.

# AdwCleaner v3.010 - Report created 31/10/2013 at 23:39:39
# Updated 20/10/2013 by Xplode
# Operating System : Microsoft Windows XP Service Pack 3 (32 bits)
# Username : Desktop - FRANCO
# Running from : C:\Documents and Settings\desktop\desktop\adwcleaner.exe
# Option : Clean

***** [ Services ] *****


***** [ Files / Folders ] *****


***** [ Shortcuts ] *****


***** [ Registry ] *****


***** [ Browsers ] *****

-\\ Internet Explorer v8.0.6001.18702


-\\ Mozilla Firefox v24.0 (it)

[ File : C:\Documents and Settings\desktop\Dati applicazioni\Mozilla\Firefox\Profiles\0\prefs.js ]


[ File : C:\Documents and Settings\desktop\Dati applicazioni\Mozilla\Firefox\Profiles\2tbca9la.default\prefs.js ]


*************************

AdwCleaner[R0].txt - [7298 octets] - [09/09/2013 00:06:48]
AdwCleaner[R1].txt - [8321 octets] - [27/10/2013 22:47:06]
AdwCleaner[R2].txt - [1138 octets] - [27/10/2013 22:59:05]
AdwCleaner[R3].txt - [1270 octets] - [31/10/2013 23:36:50]
AdwCleaner[S0].txt - [6296 octets] - [09/09/2013 00:09:11]
AdwCleaner[S1].txt - [8066 octets] - [27/10/2013 22:50:14]
AdwCleaner[S2].txt - [1200 octets] - [27/10/2013 23:01:40]
AdwCleaner[S3].txt - [1192 octets] - [31/10/2013 23:39:39]

########## EOF - C:\AdwCleaner\AdwCleaner[S3].txt - [1252 octets] ##########

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Ho fatto pulizia anche con Ccleaner come indicato.
Per quanto riguarda Firefox, non apre più le finestre.
Ci fermiamo quì ?
Ciao.