Everything One Needs To Know About Data Recovery On Mac Computers

Monday, November 12th, 2007

No matter how experienced you are in using a computer, there is no guarantee that you will never go through the nightmare of accidental data loss. Should you change your mind about a file you have just deleted, or simply realize that it was the wrong file to delete, you will have to come to terms with the fact that human error is a very common thing among computer users worldwide.

There are many other factors that can cause the problem of loosing data. The failure of the hardware on your computer or a crash due to some type of software are only some of the reasons that make you loose time and money over recovering data from your computer. Not to speak about human error or issues caused by the power systems! These are even more harmful and happen a lot more often than the damages caused by floods, fires, heat or smoke. One must also consider the virus attacks and the issue of vandalism or sabotage, as you can never know what may happen.

Nevertheless, the main point is that you do not need to panic, in case you are in the situation when you must attempt data recovery. The main reason for this statement is that there are numerous data recovery software types, that can surely get you out of such a unpleasant situation. Data recovery software is available for Mac, NT/2000/XP and RAID data recovery.

The Mac data recovery software can be used on all variety of hard drives, that is from small ones of 2 GBs up to bigger ones of 120 GBs, but it must be done by a data recovery professional.

The power of the available Mac data recovery software is far beyond our expectations sometimes. It can recover HFS and HFS+ File System Data, but the best thing about it is the fact that it can even recover entire partitions, in case a partition has been deleted or formatted. Another advantage of the Mac data recovery software is that the files in the Lost or Missing Mac folders can also be saved! This type of software is able to recognize and preserve long file names, therefore the user will have nothing to worry about when putting the recovered data back in place. Full support for all types of drives is also provided, no matter if it is IDE, EIDE, SCSI or SATA drives we are speaking about.


By: Dalvin Rumsey

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The Evaluation Process Of Data Recovery

Saturday, November 10th, 2007

As most people already know, almost all hard drives fail due to normal use and conditions. Although it can happen at anytime, hard drive failure normally takes several years to occur, due to normal wear and tear. No matter what the case may be, you should always be fully aware of the options that are available to you, and what you should do if your hard drive fails.

Data recovery is the most useful and by far the best way to retrieve data that has been lost or deleted from a hard drive. Hard drive recovery can restore files that have been lost, no matter what the cause may be. From viruses to crashes, data recovery can restore the files on your hard drive by rebuilding the platters and the structure of the drive. Most experienced computer technicians can restore your hard drive in just a couple of days.

Before you hard drive can be rebuilt, it must be evaluated. The evaluation process will give the technician a chance to go through your hard drive, determine what caused the failure, and what they need to do to restore your data. This is a very extensive process that involving a series of steps performed by the technician.

First things first, the technician must determine if the problem is logical, physical, or possibly a combination of both. Physical failures result in hardware malfunctions, while the logical problems lie in the software. Once the technician has found the problem and the cause, he can plan out the repair process and what he needs to do to recover the information.

If the technician is able to gain access into the hard drive, he or she will then create a mirrored image of the drive and continue the process. The data structure will come next, where the technician will determine just how much of the data can be saved. This step in the evaluation can be the most time consuming, as the technician or technicians will have to go through each sector step by step and located what data can be retrieved and what data cannot be retrieved.

Once the evaluation process has been completed, the results will be given to you. The technician will normally go over everything with you, and explain the options you have available. This is where they will discuss pricing, as well as how long it will take. They will also let you know how much data can be retrieved, and what they think caused the problem. You can always get a second opinion if you choose, or go ahead and use the technician. In the rare event that no data can be retrieved, the technician will tell you that nothing can be done for your hard drive. Keep in mind that before they do anything to retrieve data, they will always contact you first to find out what you want to do.

Normally, most data can be retrieved in as little as 48 hours. The evaluation process may take a few days, as it is more time consuming and planned out than the actual data recovery process. The evaluation process can take longer depending on the parts that are needed, or if other technicians need to be involved with the process. If the technician has all of the necessary parts on hand and the experience, it normally doesn’t take long. On the other hand, if the hard drive has a lot of hardware and mechanical problems – it can take a few weeks before you find out anything.


By: John Ugoshowa

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John Ugoshowa. You are welcome to use this article on your website or in your ezines as long as you have a link back to www.quickregister.net/partners/ For more information on data recovery see the computer section of Quickregister.net Free Search Engine Submission Service at: www.quickregister.net/partners/

Data Recovery & Forensic Recovery Explained

Friday, November 9th, 2007

The advances in communication that have been made in the last two decades created a new branch of detectives. These are electronic detectives, and they are required because electronic communication almost replaced the written hard copy form of communication, the majority of corporate data onlyexisting in electronic format. Because of this, hard disk data recovery experts have become a required aid for detectives or they became electronic detectives themselves.

The computer has become a focal point for investigations or for corporations to identify their employs activities.

Nowadays, a significant part of corporate investigations is the data recovery process. Through data recovery, a volume of data can be obtained and evidence can be found in documents that might be relevant to the investigation. The data recovery process ensures a mass of important information that can be used.

There are a number of terms used to describe the data on a hard disk based on its state. “Active Data”, is used to describe the data form that is accessible to the user of the computer. The term “Recovered Data” is used to describe the information that has been recovered after it has been deleted from the Active Data. This data is either in a very easy to recognize format, entire files, or an expert will be required to interpret it as it is in bits and pieces. The last type of term is “Unused” and it describes either parts of the hard disk that have never been used or parts that have been deleted from the Active Data and are available to be rewritten.

If covert corporate activities take place, then the data they leave behind will be deleted and probably the hard disk will be formatted and re partitioned to hide any traces. In this case, hard disk data recovery experts can help acquire proof by using advanced hdd data recovery tools and their expertise. This proof might then be used to conclude a case.

Data recovery specialists can help police investigations in many cases but the most expectable are cyber crime investigations that are related to credit card information theft or online money transfers. They also help in cases of child pornography.

With computers becoming a required standard in any office and workplace hdd data recovery experts will be tomorrows detectives in many investigations that include cyber crimes. They will be the ones that will uncover vital information for the conclusion of important cases.


By: Nahar Dijla
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Your Data Recovery Guidelines

Thursday, November 8th, 2007

Data recovery, according to the word sleuths and data recovery experts, is the process of salvaging deleted or inaccessible data stored on damaged media like magnetic disks and computer hard drives, optical devices, and tape cartridges.

If you need your data to be recovered fast, certain data recovery service companies can do this but most of the time there is an additional cost or a different package depending on how fast they can give you back your files. There are several reliable hard disk data recovery specialists that will notify you when they think that the data can be recovered yourself and will guide and give you information on how to do it.

Hard drive data recovery services are companies that work to make sure that all of your sensitive data can be restored if your system ever crashes. If you have decided upon using a data recovery service, you should know that that you will get a good portion, if not all of your data back. But if the drive is physically damaged and then the only hope that you have is to take it to a data recovery service where experts might be able to get your data off for you. In the worst scenario where you delete your most important files, data recovery software is capable of performing an extensive search on your hard drive to locate the pieces of your document and therefore being able to restore them to their original condition.

In addition to recovering data files and accidental deletion, there are data recovery software’s that can recover files after you’ve formatted the drive, after a computer power failure, natural disaster, or files lost from a virus. There are disk recovery applications that are specific to recovering files of a certain format, like graphics files as opposed to word document files, and there is software that can recover any type of lost file regardless of the format. Data recovery software is usually provided as floppy disk aid, this peculiarity allows that any crashed PC can work again after the software performs a series of PC diagnostics before running to determine what failed in your hard disk, and the conditions of your remaining information, if any.

However, if the problem is more serious than a mere loss of data, then it is advisable to send the hard drive to a reputable data recovery service provider. One of the most fatal emergencies most people are never really ready to accept is a problem with personal or business computers, as this most often results in vital data loss, and a data recovery system is probably the last thing on anyone’s mind when they buy a computer. If it is problem related to the file system, which has caused inaccessibility of the data then it can be recovered using data recovery software.

Some software’s help people retrieve lost or inaccessible files from almost any imaginable data recovery disaster, and without the need to send your hard drive to a specialized technical service. The hard drive data recovery services are in the first place offered for one particular purpose, to make people realize that there is still hope left of recovering your lost data even though you have deleted your important records or files from your hard drives accidentally. Restorer2000 is but another hard drive data recovery tool that is so powerful in recovering accidentally deleted files from your hard drive.

Regular data recovery software usually scans one disk at a time, but segmented volumes may be spanned across multiple disks, which is what creates the difficulty in the recovery of segmented volumes. Buy award winning hard drive data recovery software and utilities or try the demos free.

The goal of Computer diagnostics utilities and data recovery software is to help you avoid wasting time and money transporting your computer to get repaired, most of the time with no guarantee that all your data will be restored.

To conclude, the most successful data recovery is to make back-up copies and/or being able to use your repair feature without affecting your current files or programs. And you should consider data recovery tools if you own or work for a company where data is of vital importance to the proper functioning of the operations.


By: Gugu Maseko

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Challenges in Recovering Deleted Email

Tuesday, November 6th, 2007

Both computer forensics experts and data recovery technicians seek to recover deleted data. Data recovery is primarily interested in bringing back files, while computer forensics tends to dig deeper, looking not just for deleted documents, but also for metadata (data about data – such as file attributes, descriptions, dates, and other information) and meaningful snippets of unrecoverable files. One area of particular interest is email.

When most documents are written to a computer’s hard disk, each newly created document has its own directory entry (what the user sees as a listing in a folder). If a file has been deleted, but has not been overwritten by another document, the recovery process is a relatively trivial part of e-discovery or of data recovery. But when the data of interest is from deleted email, the discovery process is likely to differ significantly from that of data recovery.

Individual emails are stored differently than individual files. Different types of email programs store data differently on the user’s hard disk and require different schemes for finding useful information. As a result, the deletion of emails and recovering of deleted emails differs not only from that for other types of documents, but also between different types of email programs.

There are three main types of email in common usage – Microsoft Outlook (often paired with a Microsoft Exchange Server), text-based email client programs, and web-based email, or webmail.

In Microsoft Outlook, all emails are kept in one large, encrypted, non-text file – the PST, or Personal Folders file. Outlook has additional functions and additional content as well. There is an integrated address book, multiple mailboxes, a calendar, and a scheduler, all of which are contained in the PST file. When one looks into a PST file with a file editor or word processing application, there is little or nothing intelligible to the human eye. The file content looks like nearly random characters.

In general, the PST file must be loaded into Outlook to be read. When an email is deleted, or even when it is purged, it may be kept within the body of the single large file, but become inaccessible to the program. Some deleted emails may be recovered by manipulating the file though a manual process, repairing the resultant file, and then loading back into Outlook.

Text-based email programs include Microsoft Outlook Express, Qualcomm Eudora Pro, Mozilla Thunderbird, Macintosh Mail, and others. In text-based mail applications, each mailbox has its own file, and all emails from a given mailbox are kept in that one file. For instance, there is likely to be a single file for all of the emails in the Inbox, one for all in the Outbox, one for each user-generated mailbox, and so on. The mailbox files are primarily text files, When an individual email is deleted, the text may be “orphaned,” or released from the body of the file, but may still be recoverable as a file remnant that may contain the body of the email as well as information such dates, times, and sender.

A standard data recovery process would not recover such deleted email as the mailbox that had contained them may still be intact – just not still holding the deleted email. Part of electronic discovery would include searching the unallocated (when a file is written, the operating system allocates a specific area of the hard disk to that file. When the file is deleted, that space is de-allocated, and is referred to as unallocated space) portion of the hard disk for specific terms or phrases that are likely to be within the body of suspect emails. A search may also be performed for email headers that are also text-based. The resulting data may then be gathered and displayed as text files.

A third form of email is Web-accessed email. Many, if not most, commercial email providers offer the user the opportunity to access email via a web browser. America Online is another email provider that generally does not store email on the user’s computer by default. Email is stored on a remote computer, or distributed across many remote computers, that may be any place on the Internet. As these computers host hundreds or even millions of users and their email, the storage of such email is extremely dynamic. When emails are erased in such an environment, remnants of individual emails and files tend to be overwritten quickly and repeatedly.

There may be some remnants found on the user’s computer in a Virtual memory or a buffer file, however. The recent US Attorney’s scandal highlighted the use of such web-based email (see Why Email Matters: the Science Behind the US Attorney Scandal, by Steve Burgess). http://www.nowpublic.com/why_email_matters_the_science_behind_the_us_attorneys_scandal

There is always a chance that remaining deleted files, or remnants thereof may be overwritten. Due to this possibility, it is best to immediately turn off any computer where the recoverability of data is in question. The longer the computer remains in use, the greater the likelihood of useful data being irreparably destroyed. If a user’s computer is likely to be used or inspected during legal matters, or if document discovery is expected, the computer should be turned off to avoid spoliation of evidence.

If precautions are taken once a file is deleted, the file is likely to be recoverable. The same is true of email. While deleted or trashed email may not be recoverable as a complete mailbox file, the content of said email and its metadata might be discoverable or recoverable through the different methodologies available to computer forensics specialists.


Steve Burgess is a freelance technology writer, a practicing computer forensics and e-discovery specialist as the principal of Burgess Forensics, and a contributor to the upcoming Scientific Evidence in Civil and Criminal Cases, 5th Ed. By Moenssens, et al. Mr. Burgess can be reached at www.burgessforensics.com, or via email steve@burgessforensics.com

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