RESET - QB64Official/qb64 GitHub Wiki
The RESET statement closes all files and writes the directory information to a diskette before it is removed from a disk drive.
Syntax
RESET
- Always execute a RESET command before removing a diskette from a disk drive. Otherwise, when the diskette is used again, it will not have the current directory information written on the directory track.
- RESET closes all open files on all drives and writes the directory track to every diskette with open files.