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What are/Do I need these programs?

I'm going through my control panel add/remove programs so I can make some room on my computer, and I don't know what all the programs are so here are some I don't know, just tell me what they are and if I need them on my computer, thanks. Oh also what are other ways to get more room on my computer?

1. Adobe Flash Player 9 ActiveX
2. Adobe Reader 8
3. Conexant HD Audio
4. DivX Codec
5. DivX Content Uploader
6. DivX Convertor
7. DivX Player
8. DivX Web Player
9. ESU for Microsoft Vista
10. HP Customer Experience Enhancments
11. HP Easy Setup FrontEnd
12. HP Photosmart Essential 2.0
13. HP QuickPlay 3.2
14. HP Total Care Advisor
15. Microsoft .NET Framework 1.1
16. Microsoft Visual C++ 2005 Redistibutable (2 of this one)
17. MSCU for Microsoft Vista

Also do documents take up room on my computer? and how much room? Because I could go through old ones.

* And if I uninstal Microsoft Works when I have OpenBook will I not be able to open my documents

2 Answers2