PickMeApp exe installation is merely extracting files from archive. By default, the PickMeApp installation extracts all files inside the PickMeApp_ directory where the self extracting archive is located. Alternatively a path where to extract files may be chosen. To "uninstall" PickMeApp means to delete the directory and all files created during extraction.

PickMeApp msi installation could be uninstalled using Windows standard "Add and Remove Programs" interface.