How to Compare Folders on Windows 10

To compare folders on Windows 10, point a folder compare tool at two directories and let it list every added, changed, and deleted file. The fastest way is a tool like FolderManifest, which runs locally on Windows 10, computes SHA-256 checksums for each file, and flags byte-level edits that filenames and sizes miss. You can also use PowerShell with Get-FileHash to build a manual hash list, then diff it, but that does not scale past a few hundred files. For repeat checks, generate a baseline once and verify the same folder after every backup, migration, or handoff. Export the result as an HTML report so a second person can review it without installing anything.