I have an old P4m laptop with a functioning CD/DVD drive that will not boot from the CD. The bios is set to read CD drive 1st, then C drive then LAN. This laptop has operating sytems (in various working states) on both partitions of the disc (C&D). What i am trying to do is delete all OS’s and make a single partition working laptop but it is impossible. I can’t delete the partition in Windows because it boots from D but holds system info on C. It won’t let me format the C drive when i start in Safe mode with Networking prompt because there is sys info there. What can i do? Bar throwing it out the window onto a crowded street….Many thanks for your follow ups, greatly appreciated..