1. Double click the ISO file:
After you clicked Build Bootable CD in Partition Expert, the ISO file is created on the desktop, double-click to burn;
2. Click Burn to CD in Windows:
Insert a record-able CD and click Burn to Disc in Windows 7 and above system, and click NEXT to proceed, check the steps here;
3. Click Close When it finishes:
About one minute later, the ISO file is burned to the Disc, now you can reboot and boot from CD to manage disk space.