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Some time Mac user want to delete the entire hard disk data in such a way that nobody can recover. Inexperience users in general format hard disk and I think that all data is deleted. But that's not true, all data is still present in the Mac hard disk, which can restore the data recovery software. To ensure the safety of your data you must delete the Mac hard disk. You can use two methods to permanently delete all data from the Mac. If you are a tech freak, then the first time in the "Disk Utility" option Mac OS. Others use third-party Mac file eraser software, and software is designed in such a way that anyone can use without any technical knowledge.
How to delete a hard disk with Disk Utility: This utility is built into Mac OSX 10.3.x and above. It is important to note that disk utility will erase all data from Mac volumes. If you want some files and then copy the files to external storage media (such as CD, DVD, HD, BD, etc.). This program only deletes the reference file by default, deleted files are still present in the hard disk and can be renewed, you must select the option to completely delete the security of data.
To know more about Disk Utility, follow these steps:
1) Restart your system buy using Mac OSX system CD that came with your Mac system. During the startup process, hold down the C key.
2) Select your language.
3) Installer menu bar will open, click Open Disk Utility option.
4) Select the disk you want to delete from the Disk Utility window.
5) On the right side of the disk utility window, click the Delete
6) Select Mac OS Extended volume formated from the drop-down menu.
7) give the name of the disc representing the disc after the deletion, in the Name field.
8) Now these 4 security options are available:
Do not delete the data - This will only delete the data file used to access files. Data can be returned to this option.
Zero Out Data - This will replace the data with zero. Make difficult to recover the data. It can be a lengthy process.
7-pass delete -This procedure is used in government organizations to delete the data. In this process, hard disk data is overwritten seven times with a garbage value. This is a lengthy process can take hours.
35-pass delete - Use this option when your data is very very sensitive. It is impossible to recover your data after you get the information deleted. This is a very lengthy process can take more than one day.
9) Choose any option you want. For normal select Zero Out Data.
10) Now click on OK.
11) Click Erase.
Mac computer disk will be erased if you follow all the steps above correctly. This is a long process and there is no room for error, if any mistake then the security of confidential data can be a waste. Stellar Phoenix is a simple solution for those who are concerned about data security. You can select files and file types you want to delete or simply the entire Mac volumes. It is compatible with Mac OS X10.4 and later versions.
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