When you try to update Quickmap using Software Updates… from the Help menu in Quickmap, you may only get the option to Remove or Uninstall Quickmap. This can happen if the Quickmap SoftwareUpdate cache is corrupt.

To fix this, navigate to C:\ProgramData\Quickmap\SoftwareUpdate\ and delete QuickmapSetup.msi. You should then be able to update Quickmap from the Help -> Software Updates… menu.