A free, lightweight Windows-only editor that is efficient for recording and basic processing.
Since you cannot legally acquire a serial number for PolderbitS, these modern, free alternatives offer similar or superior recording and editing capabilities: Polderbits sound recorder and editor serial number
The most popular open-source choice. It is completely free, supports multitrack editing, and includes advanced noise removal and effects. A free, lightweight Windows-only editor that is efficient
PolderbitS Sound Recorder and Editor is officially , and the company has closed down, making it impossible to purchase or obtain new legal serial numbers. Current Status and Activation Issues supports multitrack editing