The HP Smart app has already been replaced by the new HP app on all HP devices. However, the Customize window of the R-Wipe & Clean still displays HP Smart in the Program Traces section.
Currently, R-Wipe & Clean doesn't clean up junk left by the HP app.
HP
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Discussion on the R-Wipe & Clean and R-Crypto software
Discussion on the R-Wipe & Clean and R-Crypto software