Quels programmes puis-je effacés?

Bonjour,
je voudrai faire un bon nettoyage de mon pc mais j'ai beaucoup de logiciel dont je ne sait pas a quoi ils servent. J'aimerai savoir lesquels puis-je effacé parmi ceux-ci, j'ai mis des numéros pour que ça soit plus facile:
1-Adobe Flash Player 10 Plugin
2-Adobe Flash Player ActiveX
3-Adobe Photoshop CS
4-Adobe Reader 8
5-Adobe Reader 8.1.2 - Français
6-Adobe Reader 8.1.2 Security Update 1 (KB403742)
7-Adobe Shockwave Player
8-Alien Skin Xenofex 2.0
9-Analyseur et SDK MSXML 4.0 SP2
10-Apple Mobile Device Support
11-Apple Software Update
12-Archiveur WinRAR
13-ArcSoft PhotoStudio 5.5
14-Assistant de connexion Windows Live ID
15-AviSynth 2.5
16-Bonjour
17-Browser Optimizer Dcads
18-Creator 9
19-Dcads Advanced Toolbar
20-Filters Unlimited 2.0
21-Flash Player 9 Internet Explorer
22-HDReg France
23-HijackThis 2.0.2
24-Hotfix for Microsoft .NET Framework 3.5 SP1 (KB953595)
25-Hotfix for Microsoft .NET Framework 3.5 SP1 (KB958484)
26-Infocentre Rev. 2.0
27-Installation Windows Live
28-Jasc Animation Shop 3
29-Jasc Paint Shop Pro 9
30-Java(TM) 6 Update 15
31-Java(TM) 6 Update 2
32-Java(TM) 6 Update 3
33-Java(TM) 6 Update 5
34-Java(TM) 6 Update 7
35-Junk Mail filter update
36-MediaInfo 0.7.11
37-Microsoft .NET Framework 1.1
38-Microsoft .NET Framework 1.1 Hotfix (KB929729)
39-Microsoft .NET Framework 3.5 Language Pack SP1 - fra
40-Microsoft .NET Framework 3.5 SP1
41-Microsoft Application Error Reporting
42-Microsoft Choice Guard
43-Microsoft Office 2007 Service Pack 2 (SP2)
44-Microsoft Office Access MUI (French) 2007
45-Microsoft Office Excel MUI (French) 2007
46-Microsoft Office InfoPath MUI (French) 2007
47-Microsoft Office Live Add-in 1.4
48-Microsoft Office Outlook Connector
49-Microsoft Office Outlook MUI (French) 2007
50-Microsoft Office PowerPoint MUI (French) 2007
51-Microsoft Office PowerPoint Viewer 2003
52-Microsoft Office Professional Plus 2007
53-Microsoft Office Proof (Arabic) 2007
54-Microsoft Office Proof (Dutch) 2007
55-Microsoft Office Proof (English) 2007
56-Microsoft Office Proof (French) 2007
57-Microsoft Office Proof (German) 2007
58-Microsoft Office Proof (Spanish) 2007
59-Microsoft Office Proofing (French) 2007
60-Microsoft Office Publisher MUI (French) 2007
61-Microsoft Office Shared MUI (French) 2007
62-Microsoft Office Word MUI (French) 2007
63-Microsoft Silverlight
64-Microsoft SQL Server 2005 Compact Edition [ENU]
65-Microsoft Visual C++ 2005 ATL Update kb973923 - x86 8.0.50727.4053
66-Microsoft Visual C++ 2005 Redistributable
67-Mise à jour du pilote du Gestionnaire pour appareils Windows Mobile
68-Mise à jour Microsoft Office Excel 2007 Help (KB963678)
69-Mise à jour Microsoft Office Outlook 2007 Help (KB963677)
70-Mise à jour Microsoft Office Powerpoint 2007 Help (KB963669)
71-Mise à jour Microsoft Office Word 2007 Help (KB963665)
72-Module linguistique Microsoft .NET Framework 3.5 SP1- fra
73-MSVCRT
74-MSXML 4.0 SP2 (KB936181)
75-MSXML 4.0 SP2 (KB941833)
76-MSXML 4.0 SP2 (KB954430)
77-NIS2007
78-OpenAL
79-Outil de téléchargement Windows Live
80-Packard Bell ImageWriter
81-Packard Bell LCD Test
82-Packard Bell Updator
83-QuickTime
84-Ralink Wireless LAN Card
85-Realtek HD Audio V6.0.1.5413
86-Replay Video Capture
87-Roxio Activation Module
88-Roxio Creator 9 LE
89-Roxio Creator Audio
90-Roxio Creator Copy
91-Roxio Creator Data
92-Roxio Creator Tools
93-Roxio DVD Info Pro
94-Roxio Express Labeler
95-Security Update for 2007 Microsoft Office System (KB969559)
96-Security Update for 2007 Microsoft Office System (KB969679)
97-Security Update for CAPICOM (KB931906)
98-Security Update for Microsoft Office Excel 2007 (KB969682)
99-Security Update for Microsoft Office PowerPoint 2007 (KB957789)
100-Security Update for Microsoft Office Publisher 2007 (KB969693)
101-Security Update for Microsoft Office system 2007 (KB969613)
102-Security Update for Microsoft Office Word 2007 (KB969604)
103-SetUp My PC
104-Shockwave player 10
105-System Requirements Lab
106-Ulead Particle.Plugin 1.0
107-Update for 2007 Microsoft Office System (KB967642)
108-Update for Microsoft .NET Framework 3.5 SP1 (KB963707)
109-Update for Microsoft Office Outlook 2007 (KB969907)
110-Update for Outlook 2007 Junk Email Filter (kb973514)
111-Video NVIDIA v158.34
112-VideoLAN VLC media player 0.8.6c
113-Vizros Plug-ins 4.1
114-WhiteCap
115-Windows Driver Package - SiS (SISAGP) System (01/24/2007 7.2.0.1230)
116-Windows Live Call
117-Windows Live Communications Platform
118-Windows Live FolderShare
119-Windows Live Mail
120-Windows Live Messenger
121-Windows Live Movie Maker
122-Windows Live Writer
123-Windows Media Player Firefox Plugin
124-Wireless 802.11g USB Adapter
125-Zumie Search 1.0 build 172

Voila merci beaucoup pour votre aide.