qbasic.hlp (Topic list)
Important Notice
The pages on this site contain documentation for very old MS-DOS software, purely for historical purposes. If you're looking for up-to-date documentation, particularly for programming, you should not rely on the information found here, as it will be woefully out of date.
QBasic permission denied
You are attempting to overwrite a read-only file or there is
a write-protect tab on the disk you are trying to write to.
 
To avoid the read-only conflict, use a different filename.
Remove the tab or use a different disk if the write-protect
tab is present.