Why does the source still show up in the Source Selection User Interface although I removed the source?

Symptoms:

The source may still show up in the Source Selection User Interface when you have removed the drive from your computer.

Cause:

Dynamic Web TWAIN gets the list of device drivers from Source Manager. The source is not removed from Source Manager when you remove it from your computer.

Resolutions:

To keep the source from showing up, please locate at “C:\WINDOWS\twain_32” and then remove the driver relative folders from your computer.