How do you delete something that is a write protected read only file and its on a CD

In general, you can delete a read-only file the same way you delete any other file. The only difference is that the operating system will ask you to confirm that you if you are sure. If you want to make a read-only file writable, just right-click the file and select properties. Then, un-check the read-only box. Unfortunately, deleting a file from a CD is another story. Most CD's are read only and you can't delete anything from them. The exception to this is a CD/RW. If you recorded the CD yourself on a rewritable CD, then you should be able delete the file. Otherwise, it is not possible.