It is just invisible to you the operating system just removes all its entries from the computer and marks the memory as free But it is also true that the deleted file still remains on its original location until it is not overwritten

Please fix the punctuation.
It is just invisible to you; the operating system just removes all its entries from the computer and marks the memory as free. But, it is also true that the deleted file still remains on its original location until it is not overwritten.