It’s pretty simple to remove: Click in Windows’ search field, type Cleanup, then click Disk Cleanup. Click the “Clean up system files” button. Wait a bit while Windows scans for files, then scroll down the list until you see “Previous Windows installation(s).” Select Previous Windows installation and anything else you want to remove and select … Read more
A simple RandomAccessFile scrambler would be this: private static final String READ_WRITE = “rw”; private static final Random random = new Random(); public static void scramble(String filePath, int scrambledByteCount) throws IOException{ RandomAccessFile file = new RandomAccessFile(filePath, READ_WRITE); long fileLength = file.getLength(); for(int count = 0; count < scrambledByteCount; count++) { long nextPosition = random.nextLong(fileLength-1); file.seek(nextPosition); … Read more