Please remove "Windows XP" from the System Requirements line on the Audacity app page. Audacity 2.3.0 does not run on Windows XP.
Audacity 2.1.3 was the last version that supported Windows XP, according to the Audacity site. In all later versions, Windows XP is "not officially supported". However, up until a couple months ago, Audacity did run on my XP box. Today was the first time I tried to run Audacity since the release of 2.3.0 on the PortableApps site. It does not run anymore on XP.