Surplus Procedures for PCs and Macs View The Full Article This guide describes how to remove all data from computer before going to surplus. Windows Erase Procedure Follow the steps below to completely remove all information from a hard drive. 1. Install Gdisk to your boot disk. Gdisk can be found at T:backupGhostghost80 2. Using the Boot Disk, boot the machine. 3. At the a: prompt type gdisk. 4. Delete the partitions, represented by numbers using the command: gdisk X /del /all where X represents the partition number to be deleted. 5. Restart the machine and check that procedure worked. If so, you will get a message that the operating system has not been found. This procedure will do a clean wipe of the machine where no data can be found. This step can be used to erase LINUX computers if they are based on Intel architecture. MacOS Erase Procedure Follow the steps below to completely remove all information from a hard drive. 1. Start the Mac up with a Boot System CD or Floppy normally a Disk tools disk. 2. If it is a CD, hold the C key down to start the Mac. If it is a floppy, it will start up automatically. Older Macs may require you set the startup disk under the Control Panel. 3. Find the application, Drive Setup may be called HD Setup on older OSand39s, Drive Utility on newer ones. 4. Select the Zero out data option if available. 5. Select the drive and initialize the drive from the application.