iTunes can do magic

iTunes can cause registry problems that makes your Windows PC's DVD drive apparently disappear. The fix is mentioned here. link

Flock the social browser

I have just started using Flock the web browser based on Firefox that is aimed at internet users who are into social network sites, blogging and media sites. The regular browser also boasts a media bar show and upload your images on accounts such as Photobucket & Picasa. A drag & drop web clipboard and blog editor which works with services such as Blogger, TypePad, WordPress and any self hosted blogs. It also shows posts from network sites such as Digg, Twitter, Flickr and Facebook.

How to use Google instead of Limewire

All is explained in this video.