Does Audacity contain any viruses, spyware or adware?
No. Audacity does not include any type of malware or adware if you download it from this site. Audacity is completely free and open source. It is developed by a not-for-profit volunteer group, and the source code is available for anyone to study or use.
Sometimes, virus checkers can report false positives for the Audacity installer for Windows (.exe). This is because it is a compressed installer. If you are concerned, please download the .zip file instead and check that for viruses.