Troubleshooting Free File Split Join
Check common input, access and cancellation issues before trying again.
Start With A Small Test
Check that the entire generated .parts folder is present, including every numbered part, manifest.fsj.json and the .check integrity file where generated. Missing companion files cause verification to fail. Do not rename, edit or substitute parts. Check destination space and permissions before joining.
Check Access And Running Apps
Use folders that your Windows account can access. Close apps using the selected files when the operation requires it. Do not change system security permissions just to force an operation through.
If You Need To Cancel
Cancel stops the active split or join and cleans up incomplete outputs created by that job. Completed outputs from earlier jobs and the original input remain. Wait for cancellation to finish before starting again.
Before Trying Again
Read the status message, correct the reported input or path, and try the smallest affected selection. Keep logs local if they contain personal paths or filenames.