Overclock.net › Forums › Software, Programming and Coding › Networking & Security › Secure Hard Drive erasing
New Posts  All Forums:Forum Nav:

Secure Hard Drive erasing

post #1 of 32
Thread Starter 
I'm selling a computer (Macbook) on Craigslist and I want to wipe the hard drive for obvious reasons.

Is a one pass zero fill sufficient? Or should I invest time in a 7 pass deletion?

Thanks
First Build
(13 items)
 
  
CPUMotherboardRAMHard Drive
i5-2500K ASRock Z68 Extreme 4 8gb RipJaws (1600) 4gbx2 Samsung Spinpoint F3 1Tb 7200 RPM 
Optical DriveMonitorPowerCase
24x DVD Drive ASUS VH238H 23 inch 700W OCZ CM 690 II Advanced 
MouseMouse Pad
Razer Deathadder Razer Scarab 
  hide details  
Reply
First Build
(13 items)
 
  
CPUMotherboardRAMHard Drive
i5-2500K ASRock Z68 Extreme 4 8gb RipJaws (1600) 4gbx2 Samsung Spinpoint F3 1Tb 7200 RPM 
Optical DriveMonitorPowerCase
24x DVD Drive ASUS VH238H 23 inch 700W OCZ CM 690 II Advanced 
MouseMouse Pad
Razer Deathadder Razer Scarab 
  hide details  
Reply
post #2 of 32
I would do 7 pass, just in case.
But, I am a paranoid person....

Sent from Nook Color using Tapatalk
The Sandy Road
(17 items)
 
  
CPUMotherboardGraphicsRAM
2500k asus P8z68 deluxe gen3 gtx 570 twin frozr III G. skill 8 GB 
Hard DriveHard DriveHard DriveOptical Drive
Crucial M4 128GB Sansung 2TB Hitachi 1TB Lite on CD DVD 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windown 7 Acer 23" Logitech 
PowerCaseMouseMouse Pad
Corsair 1000HW HAF 932 g500 custom 
Audio
Xonar Essence ST 
  hide details  
Reply
The Sandy Road
(17 items)
 
  
CPUMotherboardGraphicsRAM
2500k asus P8z68 deluxe gen3 gtx 570 twin frozr III G. skill 8 GB 
Hard DriveHard DriveHard DriveOptical Drive
Crucial M4 128GB Sansung 2TB Hitachi 1TB Lite on CD DVD 
CoolingOSMonitorKeyboard
Noctua NH-D14 Windown 7 Acer 23" Logitech 
PowerCaseMouseMouse Pad
Corsair 1000HW HAF 932 g500 custom 
Audio
Xonar Essence ST 
  hide details  
Reply
post #3 of 32
A one pass is probably fine.
post #4 of 32
I would do the most passes as possible without it taking days to complete. If the 7 pass takes 10 hours then i would say that was reasonable. How big is the hard drive?
post #5 of 32
35 Pass is the way to go period
Laptop
(13 items)
 
  
CPUGraphicsRAMHard Drive
Athlon-II P320 DualCore 2.1GHz AMD M880G with ATI Mobility Radeon HD 4250 3GB 250GB 
Optical DriveOSMonitorKeyboard
DVD/RW Windows 7 Home Premium 64Bit 24in 1080p Viewsonic Wireless 
Mouse
Wireless 
  hide details  
Reply
Laptop
(13 items)
 
  
CPUGraphicsRAMHard Drive
Athlon-II P320 DualCore 2.1GHz AMD M880G with ATI Mobility Radeon HD 4250 3GB 250GB 
Optical DriveOSMonitorKeyboard
DVD/RW Windows 7 Home Premium 64Bit 24in 1080p Viewsonic Wireless 
Mouse
Wireless 
  hide details  
Reply
post #6 of 32
Use disk utility or disk warrior to do a 7 pass, that's what the dept of defense uses. It's worth the piece of mind imo.
Six
(16 items)
 
  
CPUMotherboardGraphicsRAM
4930k Asus Rampage IV Gene evga 980ti SC+ 16gb Samsung 30nm 
Hard DriveOptical DriveCoolingOS
Crucial M4 256x2 Raid0 none Corsair H80 Windows 7 Ultimate 
MonitorMonitorKeyboardPower
Dell U2713HM Acer Predator XB270HU Ducky Shine 4 Corsair AX750 
CaseMouseMouse PadAudio
Silverstone FT03 Razer Deathadder 2013 Alienware Fiio e11 + AD700 
  hide details  
Reply
Six
(16 items)
 
  
CPUMotherboardGraphicsRAM
4930k Asus Rampage IV Gene evga 980ti SC+ 16gb Samsung 30nm 
Hard DriveOptical DriveCoolingOS
Crucial M4 256x2 Raid0 none Corsair H80 Windows 7 Ultimate 
MonitorMonitorKeyboardPower
Dell U2713HM Acer Predator XB270HU Ducky Shine 4 Corsair AX750 
CaseMouseMouse PadAudio
Silverstone FT03 Razer Deathadder 2013 Alienware Fiio e11 + AD700 
  hide details  
Reply
post #7 of 32
Not to derail the topic, but whats the point of doing multiple passes? Wouldn't one just destroy all the data?
post #8 of 32
Quote:
Originally Posted by Jtvd78 View Post
Not to derail the topic, but whats the point of doing multiple passes? Wouldn't one just destroy all the data?
No it does not. From what I understand it can miss information as well as leaving 'memory' in where the data was stored making it possible to recover the data that was there.
post #9 of 32
Quote:
Originally Posted by Timlander View Post
No it does not. From what I understand it can miss information as well as leaving 'memory' in where the data was stored making it possible to recover the data that was there.
There's no need to do more than a single pass on any MODERN hard drive (that means manufactured past 1999 or so).

You only need to do 7-pass or 35-pass stuff on antique drives.
Underground
(14 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 C0 ASUS P6T6 WS Revolution GTX 460 TR3X6G1600C8D 
Hard DriveOptical DriveCoolingOS
WD1001FALS SAMSUNG SH-S223F 22X DVD MULTI Corsair H50 Fedora 16 KDE x86_64 
MonitorKeyboardPowerCase
HP w19b Microsoft Comfort Curve Corsair CX600 Thermaltake Armor VA8003BWS 
MouseMouse Pad
Razer DeathAdder Black 
  hide details  
Reply
Underground
(14 items)
 
  
CPUMotherboardGraphicsRAM
Core i7 920 C0 ASUS P6T6 WS Revolution GTX 460 TR3X6G1600C8D 
Hard DriveOptical DriveCoolingOS
WD1001FALS SAMSUNG SH-S223F 22X DVD MULTI Corsair H50 Fedora 16 KDE x86_64 
MonitorKeyboardPowerCase
HP w19b Microsoft Comfort Curve Corsair CX600 Thermaltake Armor VA8003BWS 
MouseMouse Pad
Razer DeathAdder Black 
  hide details  
Reply
post #10 of 32
Quote:
Originally Posted by error10 View Post
There's no need to do more than a single pass on any MODERN hard drive (that means manufactured past 1999 or so).

You only need to do 7-pass or 35-pass stuff on antique drives.
that depends on what kind of information you have on the drive, not how old it is. it's pretty easy to recover data from just a single pass.
Gamer
(10 items)
 
Home Server
(13 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 2500k ASUS P8Z68-V LX Galaxy 780 HOF Hyper-X@1600 
Hard DriveHard DriveCoolingOS
Crucial MX300 Crucial M4 Thermaltake Frio Windows 10 Pro 
PowerCase
EVGA SuperNova GQ 650W Haf 922 
CPUMotherboardRAMHard Drive
AMD A4-5300 FM2-A75MA-E35 2 x 2 gb HyperX WD Velociraptor 
Hard DriveCoolingOSMonitor
WD Red Stock Windows Server 2012 R2 none 
KeyboardPowerCaseMouse
none 650 w Rosewill 4U none 
Mouse Pad
none 
  hide details  
Reply
Gamer
(10 items)
 
Home Server
(13 items)
 
 
CPUMotherboardGraphicsRAM
Core i5 2500k ASUS P8Z68-V LX Galaxy 780 HOF Hyper-X@1600 
Hard DriveHard DriveCoolingOS
Crucial MX300 Crucial M4 Thermaltake Frio Windows 10 Pro 
PowerCase
EVGA SuperNova GQ 650W Haf 922 
CPUMotherboardRAMHard Drive
AMD A4-5300 FM2-A75MA-E35 2 x 2 gb HyperX WD Velociraptor 
Hard DriveCoolingOSMonitor
WD Red Stock Windows Server 2012 R2 none 
KeyboardPowerCaseMouse
none 650 w Rosewill 4U none 
Mouse Pad
none 
  hide details  
Reply
New Posts  All Forums:Forum Nav:
  Return Home
  Back to Forum: Networking & Security
Overclock.net › Forums › Software, Programming and Coding › Networking & Security › Secure Hard Drive erasing