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How to avoid data loss in case of virus?


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#1 albert12

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Posted 20 January 2010 - 05:39 AM

As we all know that virus attack can damage our hard disk and resulting total loss of data present in our system. So, taking regular backup of your data is the best solution to get rid of huge loss due to virus attack.

What you guys suggest to avoid data loss in case of virus or malware?


EDIT: Moved to a appropriate forum-MG

Edited by garmanma, 20 January 2010 - 11:32 AM.


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#2 ThunderZ

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Posted 20 January 2010 - 07:05 AM

One option is an external hard drive. To be as safe as possible regarding it`s use when backing-up data, disconnect the drive from the PC when not in use.

#3 Broni

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Posted 20 January 2010 - 01:56 PM

The best backup, you can get is through imaging programs...

Acronis True Image: http://www.acronis.com/ - not free, but the best

Free alternatives:
- Macrium Reflect: http://www.macrium.com/ReflectFree.asp (highly recommended)
- DriveImage XML: http://www.runtime.org/driveimage-xml.htm
- SelfImage: http://www.excelcia.org/modules.php?name=N...icle&sid=21
- Paragon Drive Backup: http://www.paragon-software.com/home/db-express/

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#4 quietman7

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Posted 20 January 2010 - 03:30 PM

Disk Imaging allows you to take a complete snapshot (image) of your hard disk. The image is an exact, byte-by-byte copy of an entire hard drive (partition or logical disk) which can be used to restore your system at a later time to the exact same state the system was when you imaged the disk or partition. This type of software is useful for quick system recovery in case of a hard disk disaster or malware infection. For more information, please refer to:For a list of available programs, see:
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#5 quietman7

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Posted 21 January 2010 - 07:47 AM

If your computer has been infected with malware and you need to back up data, you can back up all your important documents, personal data files, photos to a CD or DVD drive, not a flash drive or external hard drive as they may become compromised in the process. The safest practice is not to backup any executable files (*.exe), screensavers (*.scr), autorun (.ini) or script files (.php, .asp, .htm, .html, .xml ) files because they may be infected by malware. Avoid backing up compressed files (.zip, .cab, .rar) that have executables inside them as some types of malware can penetrate compressed files and infect the .exe files within them. Other types of malware may even disguise itself by hiding a file extension or adding to the existing extension as shown here so be sure you look closely at the full file name. If you cannot see the file extension, you may need to reconfigure Windows to show file name extensions. Then make sure you scan the backed up data with your anti-virus prior to to copying it back to your hard drive.

If your CD/DVD drive is unusable, another word of caution if you are considering backing up to an external usb hard drive as your only alternative. External drives are more susceptible to infection and can become compromised in the process of backing up data. I'm not saying you should not try using such devices but I want to make you aware of all your options and associated risks so you can make an informed decision if its worth that risk.

Also see How to use Ubuntu Live CD to Backup Files from your dead Windows Computer. Again, do not back up any data with the following file extensions: exe, .scr, .ini, .htm, .html, .php, .asp, .xml, .zip, .rar, .cab as they may be infected.
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