Computers use hard disks to store data magnetically. Computers that are designed to use network storage devices do not use hard drive. Hard drives are the best examples for magnetic storage where the data is represented using different magnetic alignments. These drives can change the magnetic alignment if they need and hence you can write, delete, rewrite data on the drives. Optical media like CD or DVD store data optically where the data is stored using laser beams. These laser beams burns permanent marks to represent 0 or 1 into the storage medium and hence the data cannot be erased or rewritten. Solid-state hard drives use flash memory technology to store data instead of magnetic technology. Hard drives can be categorized as internal and external hard drives. An internal hard drive that lies inside your CPU are not designed to remove unless you have to repair or replace them. External hard drives that are connected through USB port or FireWire port to your system are used for additional storage of data.
You may try to format your drive to erase your personal or official data. But, delete button or format command does not erase contents on your hard drive completely. After formatting also, data stored on the hard disk can be easily restored back using the data recovery program. To wipe complete hard drive beyond recovery, you have to use best software that overwrites the data three times with garbage data using nine sanitization standards.
You may spend hours to erase the files, folders, documents etc from your disk. Actually, when a file is deleted from hard drive the first letter of the file name is only deleted and replaced with question mark. This question mark tells system that file has been erased and the space can be used to store new data. This file is not viewed any more on your system but present on hard disk. Therefore, when you use any data recovery program you are able to get back your data from hard disk. But, data recovery tool helps to recover data until deleted or lost data is not overwritten with new data. Deleting or formatting data are not the adequate strategies to erase the data on hard disk. These commands only modify the structure of the data and the data remains intact on the hard disk where recovery is possible using any third party data recovery tool.
Remo Drive Wipe is an advanced tool that wipes your data from hard disk securely beyond recovery using nine sanitizing methods where old data overwrites with garbage data. This tool works with Microsoft Windows 7, Windows Vista, Windows XP, Windows 2003 and Windows 2008 on both 34-bit and 64- bit PC. This tool erases data from both physical and logical drives. When you download demo version of the tool, you can choose one among the nine sanitizing methods. These methods are classified based on their security levels as low, medium and high where you can select depending upon your level of security.