I inadvertently deleted the Line-In Realtek High Definition Audio

I believe Windows Vista by default disables Line-in. I ran into this issue when attempting to capturing audio myself and i followed the instructions below to rectify my issue.

To be able to record audio in Windows Vista, you will have to make changes to its Default Sound Configuration / Setup.

Before making changes in Vista's sound set up, you will only see Master Volume available in the Input Source drop down box. You need to have more Input Source selections available to be able to record the sounds of your choice, such as: Stereo Mix or What U Hear for streaming, Microphone, Line In, etc.

Windows Vista Recording Input Source selections for recording streaming audio, sound from media players or just about anything you can hear coming through your speakers are Hidden from view and Disabled by Default.

If your sound card/system supports recording streaming audio Input Source selections such as: Stereo Mix, What U Hear, Wave Out Mix, Wave or a similar selection, here's what you need to do to Enable it for recording:

Right-Click on your Speaker Icon in your System Tray, (near your clock), select "Recording Devices".

In the Sound window that opens, near the top, select the "Recording" TAB.

Move your cursor down to where devices are shown.

Right-Click in the blank white area and select "Show Disabled Devices".

If supported, new selections will appear such as: Stereo Mix, What U Hear, etc. Right-Click on "Stereo Mix", "What U Hear" or similar and select "Enable".

Right-Click on the same item again and select "Set as Default Device". Click OK.

Now in the recorder's Options in the "Input Source" box, you should have the "Stereo Mix", "What U Hear" or similar source available to select for recording streaming, etc.

(You can also Enable other hidden selections like Microphone, Line In, etc. if they are not already shown).

If the "Stereo Mix" type device did Not show up in the "Sound" window when right-clicking and selecting Show Disabled Devices, it may indicate that you have Integrated Sound, and recording streaming, etc. is Not supported. In that case (on a Desktop PC), installing a sound card into an available slot should solve the problem.

If you're using a Laptop or a Notebook and aren't able to get your preferred Input Sources showing, that is hard to resolve. The best thing to do in that case is to contact the manufacturer to see what they can recommend.

Simply re-install the software and all your original data will be restored. If you purchased a downloaded version, go to the site from which your purchased it and request your keycode again, and permission to re-download. Then burn the text file with the keycode and the downloaded installer onto a CD so you won't lose it again. Another solution is to get Nero.