I use PDFSam to merge different pdf documents into one, for example, collecting different web documents into one.
WinCDEmu, by SysProgs, is a tool I use for mounting ISO images of software like Visual Studio Community on Windows 7 and Windows 10. It work really well, and if configured correctly, can be set to ask for administrator account permission before mounting the ISO CD or DVD image.
Screenshots: Description of download, configuration, mounting and Visual Studio CD-ROM’s software running.
FreeFileSync is an useful utility for synchronizing directories between a computer and other devices like flash drives, phones or tablets. It also works well with network drives and ‘cloud drives’. You can create sync-profiles and once set, it does not need much maintenance.