1. The Premise: Why Portable Apps Change the Backup Game Unlike traditional installed software, portable apps are designed to live outside the operating system’s registry and protected folders. They reside on a USB drive, external SSD, or a synced cloud folder. The promise is zero footprint and total mobility.
robocopy E:\PortableApps F:\Backup\PortableApps /MIR /XD "Cache" "Temp" "Logs" /XF "*.lock" "*.tmp" "thumbcache_*.db" /MIR mirrors one-way. /XD excludes entire folders. /XF excludes file types.
On Windows:
Monthly archival snapshots. Strategy B: The Delta-Sync with Exclusions (For Daily Use) Tool: FreeFileSync, Robocopy (Windows), rsync (Linux/macOS). Rule set example (Robocopy):
