Tendo

Traditional hard drive carries multiple mechanical parts which degrades over time and affect its standard operation. Hard disk platter is one such equipment which plays the crucial role in saving and transferring the stored data. Due to its magnetic nature, the surface of the platter starts wearing out more often than normal. Once the magnetic area of the hard disk platter becomes damaged, it can’t be used by the system to store further data as well as the existing data become corrupt or damaged. Damaged area on the platters are known as Bad sectors of hard drive which will result in data loss of that particular area.

                          

• Open ‘My Computer’ by double clicking on it or directly press ‘window’ button + E.
• Right click on desired hard disk volume/partition and choose properties for which, you want to check errors. In case you are not sure which volume to select first, start by selecting any volume and if the problem is not resolved, follow the same procedure to check errors for another volume.
• On the Tools tab, click on Check Now button located under error checking section.
• Pop up window will open and ask you to choose the desired task to perform. Ensure that you’ve check mark the two boxes stating ‘Automatically fix file system errors’ and ‘Scan for and attempt recovery of bad sectors’.
• Click on Start to begin the scanning procedure.

After Read This Guide You Will Fix These Situations. 

Require Tools.

Now Solve This Problem. 

Step 1.

Step 2.

• Corrupt logical structure of the hard drive.
• Partition header corruption due to virus or malware
• Power surges  while working on the system
• Partition corruption due to hardware issues
• Bad sectors in hard drive
• Bad RAM etc.

• Open the Run dialog box by holding the “Windows” key & pressing the "R" key.
• Run diskmgmt.msc. This will open "Disk Management".
• Check if there is any partition without a drive letter
• If there is such partition then do:
• Right-click it
• Go to "Change Drive Letter and Paths..." > "Add" button --> Add --> Select the drive letter -->
• Finally Click OK.

• Open command window.
• Type diskpart and enter. This will open the disk partition manager window.
• In the command prompt window type list volume and enter. The output will be the list of hard disk volumes. There, type “select missing_volume(eg. D:/ drive)”. Hit enter.
• After selecting the missing volume, Type assign and Open my computer to check whether  the drive is visible or not.

• Go to> Control Panel> select ‘All Items view’ > Administrative Tools> Computer Management
• If the UAC window prompts, select ‘Yes’.
• Close the Administrative Tools window.
• From the left pane go to Storage> Disk Management. Here, all connected hard drives and partitions will be shown. From the enlisted partitions, choose the missing one.
• Click ‘Change Drive Letter and Paths’.
• Click Add
• Click ok

• Go to start > search bar> run diskmgmt.msc command. The Disk Management interface will be opened.
• From lower half of your disk management interface, select Drive without any drive letter.
• Now choose the option “Change Drive Letter and Paths”.
• Click the Add button. Choose a drive and click OK to assign selected drive letter.
• Now restart and check whether the missing drive is shown or not?

Requirements 

As all of your files were stored there, formatting will permanently wipes your important files and make it permanent non recoverable even by using professional recovery tools. We’ll go through series of steps mentioned in this tutorial to fix this error easily (if you are lucky) and retrieve all of your important files as well as make the external drive usable again.

Below are the common error types you’ll see once similar situation strikes to your external hard drive:

                     

Error 0x80070571 : The disk structure is corrupted or unreadable

This disk in the drive is damaged

Please format this disk!!

The Drive isn’t accessible

The disk in drive is not formatted. Do you want to format it now?

Common reasons behind this error
External hard drive is created using moving mechanical moving parts which will may fails either sooner or later. Some unavoidable instances makes these drive inaccessible or damaged immediately and makes user data beyond the reach of known recovery software. Below are the some common reasons responsible for this situation:

• Improperly connecting or removing the drive
• The file system itself become damaged cannot be used to access the drive
• File system has become RAW which cannot be used any longer to access, manage or format the drive. In most instances, those drives becomes completely unusable.
• Large number of bad sectors and blocks has been emerged which prevents externally drive to perform normally. You’ll get freezing, hanging, corrupt files or similar issues when bad sectors took place on your drive.

• Right click on My Computer and choose Manage.
• Enter administrative details if asked and hit enter
• Go to Disk Management located under Storage at the left hand side menus.
• From the image below, check and make sure that any or all the volumes is listed along with the drive that’s connected externally. If you’ve recently faced the above mentioned error, you’ll see the volume status as RAW or offline
• Right click on that drive and choose to format it. As stated earlier, formatting will permanently wipes off all your important files and folders and your hope to get it back ever.
• Alternatively, you can right click on the external drive from Windows explorer interface and go to its properties.
• Choose the Tools tab and hit enter after selecting the check box stating ‘Check this disk for errors’.
• Once the operation completed successfully, try restarting your system and see if the error resolved.

Nokia Lumia 520 hard reset Windows Phone 7

Nokia Lumia 520 hard reset Windows Phone 8

Factory Reset Nokia Lumia 520 from the menu

1. On the Start screen, tap .
2. Tap Settings > about phone.

1. Tap reset your phone, and then tap yes and again yes.

It will help in getting back the disk space.

Delete Unused Languages Drivers:- If your startup disk is full? Then you must check whether your system (Mac) speaks too many languages. User must keep languages of its use only and should remove the unknown languages. By doing this user can save around 3 GB of disk space, but be warned because getting back those deleted languages files is not an easily reversible process.

1. Stellar SpeedUp Mac
2. Clean My Mac
3. DetoxMyMac
4. MacKeeper’s ‘Mac CleanUp

1. System infected with Virus / Trojan / Malware – Any malicious computer program can physically harm your computer and damage surfaces of the platter or inject wrong information on the sector. However, Some DOS attacks were used to misguide operating system to treat sector as bad even if they werent.
2. Abnormal Shutdown: Not properly shutting down the PC may results in wrong positioning of read/write head which tends to move around the platters when system is running. Sometime, sudden system shutdown due to power failure could make platters to get in contact with the read/write arm and damage that area called sectors.
3. Power Surge: Improper power supply or not using the reliable electricity medium causes hard drive equipments to be overheated sometime and thus, damages the magnetic area around the hard drive platter.
4. Aging Equipments: Being an electronic device, hard drive equipments may start wearing out and bad sectors were created over time. As this process seems bit natural and depends on the overall hard drive age, these cases are least considered but worth checking.
5. Faulty Heads: Heads plays crucial role in retrieving or storing information on/from the platter. It keeps rotating over platter without making contacts to the platter but when it does, produces bad sectors. Shaking or moving hard drive while any ongoing operation could make the head to get in contact with the platter and again, produces bad sectors.
6. Manufacturer faults: Bad supplier or low quality manufacturer could deliver hard drive with poor quality equipments which reduces overall lifespan of your hard drive. Bad sectors were developed quite frequently on hard drive with bad equipments. Most often, bad sectors were already created when the drive is first manufactured.

Once the bad sector is developed, it starts damaging nearby sectors and soon make your whole hard drive with thousands of bad sectors. You can use various hard disk checker utility like S.M.A.R.T. To check hard drive for bad sectors as well as other crucial parameters like spin rotation, heat, equipments status and many more.

Type of Bad Sectors
There are usually two types of bad sectors took place in modern as well as traditional hard drives:

Hard or Mechanical or Physical are the one caused by heads after coming in contact with platter surface of the hard drive. For ex, if the computer is bumped or dropped while reading/writing data from/to the disk would make hard drive heads to crash or damage the area. Extreme heat, faulty heads, dust or other ageing equipments could also contributes heavily towards hard bad sectors.

Once the hard bad sectors is created, it can only be prevented, neither removed or reformed. Best bet is copy/save all your important stuff into another hard drive and replace the drive as soon as possible to stay away from various catastrophic data loss situations.

Though, if your hard drive fails due to hard bad sectors and youve lost any or all your important data, using data recovery services would be the last hope. Highly cleaned room with skilled equipments where special treatments were used to carefully open hard drive equipments and recover data from the storage area.

Soft or logical bad sectors are less drastic and delivers minimum harm to your PC or the stored data. It is created when an error correction code of a sector cant verify the content of the same sector due to virus/threats injection on the BIOS section, improper system shutdown or directory structure corruption.    

Soft bad sectors can be repaired by using low level formatting (quick format) or disk check/repair tools which fills zeros in all the soft bad sectors. Disk wiping process is pretty effective and completely removes soft bad sectors around the hard drive, however you might permanently lose the stored data and data recovery isnt possible even by using professional recovery program. 

How to repair bad sectors?
There are choices to repair bad sectors by using either inbuilt utility or software provided from third party. As there is no guarantee of repairing bad sectors, you can still try any of the options mentioned below.

Using Inbuilt Utility
Various inbuilt check disk utility is available to check hard drive health status or any running issues and repair them immediately. Microsoft provided this utility for free of cost with Windows to help troubleshoot file system errors, scan and fix bad sectors found around the hard drive.


                                           

Running check disk utility is completely safe and doesnt harm overall functioning of your PC. As check disk utility will perform scan and recovery concurrently, this process might takes time little longer than usual.

Heres how you can start check disk utility in your PC:

1. Double click on My Computer  from the desktop or press window button + E.
2. Right click on the desired drive you want to check and choose properties. Note:You cant check and repair all the drive at once.
3. From the opened properties window, select Tools tab and click on Check Now.
4. Check disk box will open containing options like Automatically fix file system errors and Scan for and attempt recovery of bad sectors. Mark both the options or can leave the first one only if you wants to check only hard drive for bad sectors and repair it.
5. Click on Start to initiate check disk operation.
6. Enter administrator password if requested and click OK.
7. Wait for sometime and then restart PC once the operation is completed successfully.

Spinrite is a professional hard disk check and repair utility suitable for all the latest Windows operating system and works effectively on FAT, NTFS and Linux formatted volume. The software is self explanatory and requires simple steps to boot from DOS environment and repair almost any kind of bad sectors.

            

Note: Spinrite could costs your around $ 89 USD.

Preventing bad sectors in future

Below are the precautions steps you could take to avoid bad sectors from being developed around your hard drive,

1. Use inbuilt disk defragmenter utility to stabilize operations and reduces stress from heads. Run this utility at least once or twice in a month or schedule it to run periodically. It also helps in managing disk spaces and thus, reducing overall burden from the heads.
2. Always use, professional and recommend anti virus software to keep your system clean and malware free.
3. Avoid bumping or throwing during ongoing operations.
4. Use system in cooled and dust free environment.
5. Use standard cables or connecting media for longer durability.
6. Use proper shutdown or standard way to turn your system off. Use UPS or similar power backup devices to make sure that you always have enough time to safely shutdown your PC when the power is absent.
7. Running OS repair utility could also shorten the occurrences of bad sectors around the hard drive.