Some portable builders set the app to "read-only" or the USB drive is formatted as FAT32. Fix: Format your USB drive as NTFS or exFAT . Ensure the "Read-only" attribute is unchecked on the entire SPSS folder.
Operating System: Most portable builds are designed for Windows 10 or 11. Alternatives to Portable SPSS ibm spss portable
Never edit a .por file manually unless you fully understand the spec – one misplaced space corrupts the entire dataset. Some portable builders set the app to "read-only"