If...Then...Else
My documentation explained that an automated process would clean up some artefacts from the installation process within 15 minutes. The artefacts were harmless but annoying. Users didn't see them. I was cleaning up because I am conscientious. And you have other things to do on the PC which take more than 15 minutes.
My documentation explained that IF the process didn't clean up (2% failure rate), THEN the next run would do it. Or the one after that. ELSE that fails too or you are in a hurry, in which case you can delete the files manually.
So why are you on the phone after 16 minutes asking what to do?
Biting the hand that feeds IT
