They don't leave registry entries or junk files behind.
Adobe InDesign CC 2015 introduced key features like the Mercury Performance System, Paragraph Shading, and integrated Adobe Stock . While "portable" RAR files promise immediate, installation-free use, they are unofficial, modified versions that pose significant security risks, including malware and data theft, and violate licensing agreements . For a secure experience, users should utilize the official Creative Cloud Desktop App to access legitimate, older versions . For more information on safely accessing older software versions, see this YouTube video . How to install a previous version of InDesign adobe indesign cc 2015 1250 portable x86x64 rar