win installer: uninstaller leaves bin\Uninstall.exe in case when it was run from another installation using "Uninstall Old versions".
win installer: uninstaller leaves bin\Uninstall.exe in case when it was run from another installation using "Uninstall Old versions".

IDEA-201878 Uninstall previous installations: There is bin folder with uninstall.exe after uninstalling

allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community,allotria/intellij-community