- How-To Booklet
- 1. How to protect your computer from malware and hackers
- 2. How to protect your information from physical threats
- 3. How to create and maintain secure passwords
- 4. How to protect the sensitive files on your computer
- 5. How to recover from information loss
- 6. How to destroy sensitive information
- 7. How to keep your Internet communication private
- 8. How to remain anonymous and bypass censorship on the Internet
- 9. How to protect yourself and your data when using social networking
- 10. How to use mobile phones as securely as possible
- 11. How to use smartphones as securely as possible
- Hands-On Guides
- avast! - anti-virus
- Spybot - anti-spyware
- Comodo Firewall
- KeePass - secure password storage
- TrueCrypt - secure file storage
- Cobian Backup
- Recuva - file recovery
- Eraser - secure file removal
- CCleaner - secure file deletion and work session wiping
- Riseup - secure email service
- Pidgin with OTR - secure instant messaging
- Jitsi - Secure Audio, Video and Text Communication
- Thunderbird + Enigmail + GPG - secure email client
- gpg4usb - email text and files encryption
- Firefox + add-ons - secure Web browser
- Tor Browser - anonymity and circumvention
- Social networking tools
- Mobile Security
How to Use Eraser
List of sections on this page:
- 3.0 How to use Eraser with Windows Explorer
- 3.1 How to Wipe Unused Disk Space
- 3.2 How to Use the On-Demand Task Feature
- 3.3 How to Use the Scheduler Task Feature
- 3.4 How to Remove a Task
- 3.5 How to Erase the Windows Recycle Bin
3.0 How to use Eraser in Windows Explorer
It is common for people to use Eraser through the My Computer Windows Explorer programs, rather than through the Eraser program itself.
Step 1. Open a folder containing a file you want to delete permanently.
Step 2. Right-click on this file. Two new options appear on the pop-up menu, Erase and Eraser Secure Move as follows:
Figure 1: Erase and Eraser Secure Move options
We are going to use the Erase option to permanently delete this file.
Step 3. Select the Erase item from the menu, as shown in Figure 1 above.
The Confirm Erasing pop up dialog box will appear as follows:
Figure 2: The Confirm Erasing pop up dialog box
If the file displayed in the pop up dialog box is the one you want to delete permanently, perform the following step:
Step 4. Click to permanently erase or wipe the file from your computer.
Warning: Any file deleted in this manner with be irretrievably and permanently deleted. Therefore, you must be completely sure that you really want to erase a particular file, or group of files.
To securely move a file/s from one location to another (for example, from your computer to a USB memory stick):
Step 5. Select
You will need to answer the same warning prompt, as above, to continue.
3.1 How to Wipe Unused Disk Space
Erasing unused disk space involves wiping all traces of previously existing files from the 'empty space' of your hard drive/portable storage device. This empty space usually contains files that were not deleted properly (please refer to the Recuva Hands-on guide and the How-to Booklet Chapter 6 from more information about this).
Step 1. Select Start > Programs > Eraser > Eraser
Tip: You can perform the wiping task on demand or you can schedule it to occur at a specified time.
Important: This process could take between 2 and 5 hours to complete and will slow your computer down while it operates. It maybe a good idea to run or schedule the free space wipe when you are not using your computer (or have gone home/to bed for the night).
3.2 How to use the On-Demand Task
To create an On-Demand task for wiping unused disk space, perform the following steps:
Step 1. Click
Step 2. Select File > New Task as follows:
Figure 3: Selecting a New Task in the File menu
The Unused space on drive option should be selected.
Step 3. Choose the drive you want to clear the free space on. (In this example, the Local Disk (C:) has been selected. This is usually the primary hard drive on most computers.)
Figure 4: The Eraser Task Properties screen
Step 4. Click to create, and then run the task which will appear in the Eraser user interface.
Step 5. Right-click the task to activate the pop-up menu as follows:
Figure 5: The Eraser screen with Run selected
Step 6. Select Run to activate the Eraser pop up dialog box as follows:
Figure 6: The Eraser pop up dialog box
Step 7. Click .
The Eraser progress status window displays the wiping process on the unused disk space as follows:
Figure 7: The Eraser window in the process of wiping unused disk space
3.3 How to Use the Scheduler Feature
Since we may not always remember to do this kind of computer 'housekeeping', Eraser has an option that lets you schedule a wiping task so that it runs at an appointed time every day, or one day per week.
Step 1. Click in the Eraser main screen.
Step 2. Select File > New Task as follows:
Figure 8: Selecting a New Task in the File menu
This will activate a window similar screen to Figure 4 (in which you created an on-demand task).
Step 3. Set these options as outlined in section 3.2 How to Use the on-Demand Tasks Option.
Figure 9: The Eraser Task Properties screen displaying the Schedule tab
Step 4. Click the Schedule tab to activate its associated pane with two configurable settings:
Figure 10: The Eraser Schedule tab
Step 5. Select day or event item that best suits your needs from the Every drop-down list.
Step 6. Enter the time that best suits your needs in the At timer, which can only be entered in a 24-hour format.
Step 7. After you have set a time and day, click .
The scheduled task will appear as follows:
Figure 11: The Eraser Scheduled task list
Note: The computer must be switched on for the scheduled task to run.
3.4 How to Remove a Task
After you have run either an on-demand task or a scheduled task, you may want to remove it from your task list.
To remove an on-demand task, perform the following steps:
Step 1. Click to display its corresponding task list as follows:
Figure 12: The Eraser task list
Step 2. Select the task you want to remove, as shown in Figure 12 above.
Step 3. Right-click to activate the pop-up menu and select the Delete item to remove the task from the task list. (Alternatively, you may click located beneath the Eraser menu bar.
The process for removing a Scheduled Task is almost identical. To remove a scheduled task, perform the following step:
Step 1. Click , and then repeat steps 2 and 3, as described in this section.
3.5 How to Erase the Windows Recycle Bin
Eraser also allows you to erase any traces of documents you may have deleted from the Windows Desktop Recycle Bin.
To access this feature, perform the following steps:
Step 1. Right click anywhere on the Recycle Bin icon to activate the Eraser pop-up menu as follows:
Figure 13: The Eraser pop-up menu for the Recycle Bin
Step 2. Select the appropriate item from the pop-up menu to begin erasing your Recycle Bin.