An error occurred trying to replace the existing file: DeleteFile failed; code 5 Access is denied
This error occurs when SyncBack is currently running and so one of its files cannot be replaced. It may be running under a different user account and so not be visible in the Task Manager. Try closing SyncBack and trying again. If it still fails:
- Abort the install, run SyncBack, and set it not to start with Windows
- Reboot and try installing again
If you are still getting the same error then reboot Windows into Safe Mode, install, then reboot.
For more information, and possible solutions, see our Access Denied KB article.