Head crash is a major problem with modern hard drives that could occur at any point of time. It results as the inaccessibility of your most critical data stored on disk platters. A damaged head can not read/write data from or to disk platters. It causes serious data loss situations and lead to Hard Drive Recovery.

The head crash is a type of hard drive failure that occurs when read/write head of your hard drive touches the disk platters. The platters are the components with magnetic surface where the data gets stored. Head crash results into damage to disk platters and cause serious data loss situations.

The read/write head generally rides upon a thin layer of moving air ensnared on the platter surface (some hard drive used thin liquid film instead). The uppermost layer of disk platter is made of Teflon-like material, which works like lubricant. Beneath this is a film of sputtered carbon. Both these layers are helpful in protecting magnetic layer from most head crash situations.

The head crash might be initiated by just a single minute dust particle or other accumulations that could cause the read/write head to rebound against the hard drive platters, destroying thin magnetic coating of the disk surface.

The hard drive read/write head is made with the help of thin layer technology, which includes materials that are hard enough for scratching protective layer. The head crash might also take place when the hard drive or hard drive equipped device gets dropped accidentally.

Since most of the modern hard drives spin at speeds between 5,400 RPM (Revolutions Per Minute) and 15,000 RPM, the possibilities and extent of damage to the disk platters become really high. Due to high speed, the read/write head over the platter surface overheats and makes the hard drive or some of its parts unusable until it cools down.

Although, head crash causes serious data loss situations but you should not panic in such cases as Data Recovery is possible to get your precious data back. To overcome such data loss situations, you can take help from experienced recovery professionals that provide drive recovery service.

The Hard Drive Recovery service is personalized help offered by recovery specialists to repair or replace the damaged read/write head and other affected components of your hard drive. They work through safe and controlled environments of Clean Rooms (special lab environments) implementing advanced and suitable result oriented techniques. Such techniques are finalized after analyzing the cause of crash.

Stellar Information Systems Limited is the most trustworthy and leading Data Recovery company. It delivers sophisticated recovery service in State Of The Art Class 100 Clean Rooms. The service is available for various models and types of hard drives as SCSI, SATA, EIDE and IDE plus modern SSDs (Solid State Drives), generally SATA.

File Open Not Found or"Xlquery.xla Could Not Be Found" Error Opening File-Excel Error

Excel errors that plague Excel users and impede work functionality are many but the ones that temper with the opening of important files and folders containing important and sensitive data in them are the ones that come to limelight rather often and on a regular basis.

One such common excel error goes like this:-

'C:\Program Files\Microsoft Office\Office\Library\Msquery\Xlquery.xla' could not be found. Check the spelling of the file name, and verify that the file location is correct.

One gets to see this particular error message when one opens a file in Microsoft Excel 97

The occurrence of this error message can be traced back to two probable causes:-

· When a Xlquery.xla file is moved from its original folder to another folder

· Opening a file containing a macro referencing the Xlquery.xla add-in

The first thing that needs to be ascertained in this case is that whether the file has been renamed, moved, deleted or whether the file is in a trusted location. One can check this by trying to open the file from the list of most recently used files on the File menu.

Provided below are a few workarounds that one can possibly adopt to avoid this:-

· Select the Xlquery.xla Add-In

· Move the Xlquery.xla Add-In to Its Original Location

To go about the first troubleshooting method click on Add-Ins on the Tools menu in Excel and then click to select the MS Query add-in check box. Just in case if you do not find the MS Query add-in listed in there, click browse to search for the Xlquery.xla file which in most cases in located in the following folder by default: C:\Program Files\Microsoft Office\Office\Library\MSQuery

If you are still encountering the error message or you are unable to find the Xlquery.xla file, then try your hands at moving the Xlquery.xla add-in to its original location. Follow the procedures as stated below.

• Click on Start then point to Programs and then click on Windows Explorer.

• In the Windows Explorer, point to Find on the Tools menu and then click Files or Folders.
• In the Named box, type Xlquery.xla
• In the Look In list, click and select the disk drive that contains the add-in file. Once this is done click on Find Now.
• If the search returns no files, repeat the forth step to search any other disk drives that might be having the add-in file.
• When the search window returns the file, right-click on the Xlquery.xla file icon, and click on copy on the shortcut menu
• In Windows Explorer, click to open the MSQuery folder which by default is located in: C:\Program Files\Microsoft Office\Office\Library\MSQuery (the MSQuery folder may be located in a different path depending on where your Excel is installed)
• In Windows Explorer, click on Paste on the Edit Menu

This should solve the problem and the error message should ideally not show up after this but if the problem and the complications associated with it continues, bank on Stellar Information Systems Ltd, a market leader in data recovery and data protection service and solutions for assistance.

If you are not being able to locate the file that contained the all important data in it, it would surely be a matter of concern for you. Stellar values the time and effort that you might have put in to locate the file but tempering with the system to retrieve the file might have reverse effects on the data contained in it. Many a times gross corruption of the file or nascent virus attacks spell this kind of behavior.

Data Recovery Software-High Peace of Mind

If you owe even a small but important amount of data, then being aware to the data recovery solutions is the part of the relevant contingency plan. No matter how secure your internet connection is or how prudently you step forward your any step while dealing with the data, the systems always remain to the prone to data loss incidents. Out of the two data recovery solutions, viz. data recovery software and data recovery services, the ‘Do It Yourself’ utilities play the major role, the reason for the same being the high rate of the logical data loss incidents.

These data loss incidents should not be considered for the matter of sinking feeling which comes with the realization that all your bookkeeping records, customer invoices, highly relevant word processor documents have become out of your reach. As these data recovery software, available through different sources, are carefully crafted to tackle all the logical data loss incidents and recover all kind of files. All you need to do is to choose the one which is best suited to your needs.
Looking For the Data Recovery Software

Well the procedure is quite easy but needs the careful steps. Just open your search engine and start searching with some keywords, suitable as per your requirements. When you get the stack of the data recovery software, just go for short listing them on the basis of the qualities and features you need.

Actually the main criteria of the selection are based on the operating system and file systems which have been used by the user. Next comes the incidents in which the data recovery software is applicable and then the user interface and efficiency of the software. However this may appear quite time consuming but you need to check carefully all the details, if the perfect data recovery is required.

Precautions while Choosing

The data recovery software are developed and marketed by the range of companies. Most often these are developed as narrow-focused programs which may leave some aspects of data recovery. Some of them may not been designed read-only and hence can demolish your data, unrecoverable by any means.

You may become tempted towards either of them due to the ton of money spent on the advertising and not on the quality. Hence you need to be persistent.
Stellar Information Systems Limited, the grand of the data recovery software provider, offers you the most well developed and in-demand data recovery software by the geek engineers of data recovery industry. The software have the extended ability to examine the hard drive for the lost data and to drag out it with the maximum efficiency.

The software are available for the operating systems like Windows, Macintosh, Linux, UNIX and Novell. Applicable for each possible case of logical data loss, the demo versions of these data recovery software are available on Stellar’s website which will let you check the efficiency of these software.

Inability to access the CD or DVD drive

Your computer had been working just fine but the sudden helplessness that has set in due to the inability to access the CD or DVD drive has put you off. As far as you remotely remember, you had done everything right starting from a proper shut down of the system to checking its drivers not to forget installing the best anti-virus software too. Then what went wrong?

Immediately after having removed a program from the computer, have you started encountering this problem. You are no longer being able to access the CD or the DVD drive using My Computer and to top it off you have an error message flashing across the screen that reads thus: "error code 31". All you can remember is having removed a CD recording program or a DVD recording program in your Windows XP.

Thank God cause you are not the only person who has ever suffered a similar fate, there have been loads of people before you who have complained about a similar error. This is a typical behavior that gets replicated when you try to view the CD drive or the DVD drive in the Device Manager. In this case the errors that you are likely to confront are as follows:

1. The device is not working properly because Windows cannot load the drivers required for this device (Code 31).

2. A driver for this device was not required, and has been disabled (Code 32 or Code 31).

3. Your registry might be corrupted. (Code 19)

4. "error code 39" error message.

You are likely to find this in the notification area:-

Windows successfully loaded the device driver for this hardware but cannot find the hardware device. (Code 41)

There is no troubleshooting available if your registry is corrupted. The only way to workaround this is by modifying the registry which is in itself a risky ordeal cause one discrepancy caused while implementing this task can cost you a lifetime worth of data.

These error messages are all case in pointers to the fact that your registry needs modification leaving you with no other option but to attempt this task. If you are a beginner and not too sure, don’t attempt it cause it will wreak more damage than you can ever imagine. Get a veteran to help you out if need be cause one wrong step in handling the registry editor can lead you to reinstall the operating system deleting all the important data if it has been stored in the primary partition along with the Operating system.

Under the given circumstances the above faults can only be tended to if the Upper Filters and the Lower Filters registry entries are removed through effective registry modification. It is advisable to uninstall all CD recording or CD writing programs before embarking on the task. These can be reinstalled after the resolution has come by. Once this is successfully carried out, restart the computer and you can be rest assured that your problem would vanish into thin air but if you have messed up in between and lamenting over your hastiness and the ensuing fault it has caused, Stellar Information Systems Ltd shows you a ray of hope.

Stellar Information Systems Ltd, a pioneer data recovery software company has come up with a comprehensive software that is a one-step solution for data recovery from Windows whatever might be the data loss situation that has wrought the havoc. If you have lost your precious data and a reinstallation of the Operating Systems is bothering you, install Stellar Phoenix Windows Data Recovery to recover every bit of your lost data that has suffered deletion.

Its powerful algorithms enable the software to perform search, locate and recover functions for recovering lost, missing, inaccessible or deleted data from Windows Vista, Windows XP, Windows 2000, Windows 98 and older operating system hard drives. It caters to both File Allocation Table (FAT) and New Technology File System (NTFS) file systems.

This is a Non destructive and read-only utility that offers Raw File Recovery’ feature, advanced search, File preview and Live updates. Try the demo version of the software to access the performance of the software

What is the Contribution of a Clean Room towards effective Data Recovery?

In a highly competitive world where one hard drive crash can wipe out an entire company from business, express precaution is taken to safeguard one’s data from leakage and theft.

This has more so become the rule in today’s world where a single data loss situation can wreak irreparable damage that can in no way be reimbursed in terms of finances and the destruction caused. This has prompted most of the data recovery companies to build up an infrastructure that can effectively and efficiently retrieve the lost data that has suffered deletion or mutilation. It is in this regard that Clean Rooms come into play.

The very concept of a Clean Room came into being in the early 60s, when the aeronautics industry started developing its high precision technology. Later on this idea spilt over to the other industries that required a similar environment for experimenting and preserving their finds and inventions.

A Clean Room is a specially designed working area where the environmental parameters like the quality of air, humidity, temperature and moisture are technically regulated and manipulated so as to protect the sensitive equipments, samples, apparatus and gadgets from getting contaminated by outside influence.



The size and expanse of the Clean Room depends on the requirement of the industry in question and can vary from an office cubicle to a relatively spacious room but its uniqueness lies in the fact that they can be permanent, modular or portable whichever suits the company.

Clean rooms have now made a niche for themselves in the industries that deal in bio-technology, nano-fabrication, space satellites, sterile medical devices, computer hardware, optics, silicon chips and microprocessors.


Clean rooms were first classified in the US in 1963 and from then on six categories have emerged ranging from Class 1 to Class 100,000. The classification is done on the basis of the number and size of particles allowed per unit volume of air inside the Clean Room. Closely tailing behind USA, UK came out with the British Standard 5295 in 1999 while the first ISO standard called ISO 14644-I was published in 1999. Ideally a Class 100 clean room contains not more than 100 particles of 0.5 microns or more per cubic foot of air and the calculations go likewise.

The technology that goes into preserving the Clean Room is tedious and complex but it’s every penny worth the effort. Every Clean room needs to maintain a laminar air flow so as to avoid turbulence and specially designed commodities, stationery, furniture and gadgets of specified quality are used. The trained and specialized professionals who work inside a clean room wear special gloves, face masks, head covers and bunny suits to prevent contamination.

The environment is kept dust-free and well-controlled by following an effective contamination control program which entails repeated filtering of the air using sets of special filters that remove particulate impurities that can cause any sort of harm. Specially designed filters called the HEPA (High Efficiency Particulate Air) filters are used to filter particles that may be as small as 0.3 microns.

Every data recovery software company with a reasonable market standing has a Clean Room as this is an essential infrastructure which no data recovery company can do without. Since the Clean Rooms are used for the express purpose of dissecting the hard drive and physical servicing of the hard drive components even a small dust particle settling between the platters and the read/ write head can cause the disk to crash. Thus the clean room maintains an ideal environment for opening, operating and repairing such electronic devices.

If your hard drive has crashed and other hardware components in your computer are ill functioning, bank on Stellar Information Systems Ltd, a pioneer data recovery company specializing in data recovery and data protection services for assistance.

Equipped with trained and expert data recovery professionals and an excellent Clean room facility, Stellar can effectively retrieve your data from such situations by applying top-notch proprietary tools and techniques.

The procedure they follow is simple yet result yielding. The hard drive is dissected and the nonfunctional components are replaced and made operational again. A thorough hard drive scan is conducted and the recoverable data is effectively and efficiently extracted with maximum efforts exercised to maintain the original format.

How can students maximize the benefits that they draw from their laptops

Laptops have become a quintessential part of every student’s life. Managing data in laptops is far easier than it is in a paper notebook. With ample storage and multitude of facilities, laptops are a boon that has only made scholastic exercise more interesting and enjoyable.

However, instances of data loss are far higher in case of a laptop than it is in case of a notebook, reason being data once lost from the laptop is generally difficult to retrieve whereas data can hardly get lost from notebooks unless they are stolen which is also a case that cannot be completely ruled out in case of a laptop.

Laptops provide certain facilities like locking mechanisms and passwords that enables only the user to access the data that is stored in it thereby reducing the chances of the data being stolen even in occasions when the laptop gets stolen.

Provided below are a few maintenance tips that can be of considerable help to a student dealing in Laptops

Handling of the laptop:-

Laptops are portable and lightweight devices but they are not meant for rugged handling.

Keep them in a dry, cool, clean and dust-free environment. Place them in a low-traffic area to protect it from shocks and bumps. Keep them in well padded and water tight bags away from dust and grime.


Keep the virus away:-

Virus can eat into your system rendering all your data defunct and unreadable. Assume control over your own data. Installing a reliable anti-virus software is a must as it tests the computer for sequences of code unique to each known computer virus and eliminates them before they can wreak any damage. Surfing and downloads are often required for reference purposes so it’s important to install a spyware program to eliminate them from bugging the system.

These save you from impending disasters:-

• Regularly backing up your precious data is a must. This saves your data from being lost/missing if any sort of data disaster strikes. Its advisable to backup your data at least once a week in CD, DVD, USB flash drives or Internet backup facilities.

• Use Auto-Save features – Most of the modern software are equipped with Auto-Save features that save the particular document you are working on at preset intervals. This is a very useful utility and can save your data from getting lost or deleted if the electric supply is irregular and erratic.

Know your battery capacity

Some laptops shut down quickly when a specific low battery level is reached and this results in loss of precious data that you might be working on. For the safety and security of your data and yourself, always have a secure electrical outlet to plug into, not to leave out a UPS which will enable you to save your data safely once the electrical power supply gets disconnected for some reason or the other.

Feel for your laptop:-

• Be observant and aware of what is bugging your laptop. Recurrent error messages, which are hindering normal functioning of your laptop, and stalling the process of data save and store are dangerous indications and should be catered to at the earliest.

• Your laptop might require servicing if it is generating strange sounds. as they often emanate from damages that might have been caused due to physical destruction of the components of the hard drive. These are pointers to the fact that your laptop requires immediate attention. Stop working on the media and contact a data recovery company immediately.

• Do not try your hand at data recovery yourself. You might end up losing the data that is still present in your hard drive in an unrecoverable form. Entrust the job to s data recovery professional who is specialized in this given field.
If you have already lost substantial portion of your important data and don’t know how to go about recovering it, bank on Stellar Information Systems Ltd, a pioneer data recovery software company for help. Stellar has a host of software that can recover data from a variety of data loss situations. Stellar is a specialist when it comes to data recovery and has emerged as the market leader as far as data recovery and data protection services and solutions are concerned. You are free to log on to our site to access the software and services we provide.

What is Windows Data Recovery ?

Encountering data loss problem from your Windows PC? You have help at hand. Stellar Data Recovery Inc., a pioneer data recovery service provider specializing in data recovery services can be of considerable help to you. Crucial data is important to all of us, loss of which can create havoc in our lives.

Most common deterrents that disrupt the functioning in Windows Operating Systems are as follows:-

• System failures
• Hard drive crashes
• “missing OS” error
• Deletion of root directory
• Virus attack on the boot sector
• Spy ware menace
• Windows xp Registry problem

Contrary to what is majorly believed, software applications do not apply unanimously on all faults. Graver versions of the realizable faults require services to set the computer functioning back again. These faults should not be dealt with lightly and tempering with the system that has suffered data loss due to onslaught of these aforesaid menace can aggravate the complications and render data retrieval impossible even by data recovery professionals.

Equipped with trained and expert data recovery professionals, advanced and latest inventories and an excellent Clean room facility, Stellar can effectively retrieve your lost data by applying top-notch proprietary tools and techniques whatever the data loss scenario might be.

Stellar has devised ingenious techniques to troubleshoot complications relating to the more advanced Windows Vista who’s advanced and upgraded features require special handling and refined services.

Stellar Data Recovery Inc. is a trusted name in the industry and their services have hardly failed to impress ever.