How to Completely Erase a Hard Disk Drive?

A new year has begun and perhaps you have decided to perform a system upgrade or get rid of your old computer system and purchase a new one. But before you sell or donate your old computer, it is very much necessary to completely erase your Hard Disk Drive. Yes, every one of us are aware of this fact and so, we delete the contents of the hard disk either by using the DELETE key on our keyboard or by Formatting the hard disk.

Deleting and Formatting – Just Not Secure Enough

But the fact is, the data will still be on the hard disk even after deleting it or formatting the hard disk. Using the delete key on your keyboard will only remove the shortcuts to the files making them invisible to users. Deleted files still reside on the hard drive and a quick Google search will show many options for system recovery software will allow anyone to reinstate that data.

Formatting the hard drive is a bit more secure way to erase the hard disk. Formatting a disk will not erase the data on the disk, only the address tables. It makes it much more difficult to recover the files. However a computer specialist would be able to recover most or all the data that was on the disk before the reformat. For those who accidentally reformat a hard disk, being able to recover most or all the data that was on the disk is a good thing. However, if you’re preparing a system for retirement to charity or any other organization, this obviously makes you more vulnerable to data theft.

Erasing the Hard Disk through DISK WIPING

So it is necessary for us to use a 100% secure way to erase the hard disk. The secure way of erasing the hard disk is called Disk Wiping. Disk wiping is a secure method of ensuring that data, including company and individually licensed software on your computer and storage devices is irrecoverably deleted before recycling or donating the equipment. Because previously stored data can be brought back with the right software and applications, the disk wiping process will actually overwrite your entire hard drive with data, several times. Once you format you’ll find it all but impossible to retrieve the data which was on the drive before the overwrite. The more times the disk is overwritten and formatted the more secure the disk wipe is.

There are a variety of disk wiping products available that you can purchase, or freely downloaded online to perform more secure disk wipes. One of my favorite disk wiping software is

WipeDrive/ WipeDrive Professional

You have to use this tool by burning the iso image file onto a CD or by using a floppy disk. After burning this tool you have to boot your PC and follow the screen instructions to completely erase the hard disk.

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Hack Or Alter Windows Vista Base Score

If you are a Windows Vista user then you are very likely to be familiar with the Base Score. This score is calculated based on the computer’s hardware and software configuration. This score act’s as a rating to your PC. If you have a too low base score then don’t worry. Hacking Windows Vista’s so called Base Score is very easy. It is possible to hack this score within no time.Here are the snapshots of my own system. Actually my system’s base score is 3.7. But I have brought it up to 9.5 with this small hack. Can you believe this!!




Here is a step-by-step instruction to hack Vista Base score :


1. Navigate to


C:\Windows\Performance\WinSAT\DataStore


2. You should see a .xml file with Assessment (Formal).WinSAT as filename


3. Right-click it and select open with ‘Wordpad’ (Not notepad!)


4. On line 12, you should see something like the following:


<SystemScore>9.5</SystemScore>

<MemoryScore>9.5</MemoryScore>

<CpuScore>9.5</CpuScore>

<CPUSubAggScore>9.5</CPUSubAggScore>

<VideoEncodeScore>5.5</VideoEncodeScore>

<GraphicsScore>9.5</GraphicsScore>

<GamingScore>9.5</GamingScore>

<DiskScore>9.5</DiskScore>



5. You can enter any number in the place where I have written 9.5. But the number should be less than 10.


6. Once you have entered the number of your choice save the file and close it.


7. That’s it. You have successfully altered your Windows Vista base score. No restart is required.

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