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Home / 05 Jul 2015 / Updated: ---

Data Recovery SanDisk Micro: If your micro SD card SanDisk is not accessible due to an error, and the built in card reader into laptop (computer) system does not see, can not be formatted, or send a message "The request could not be performed because of an I/O device error", do not throw in trash. Because:

1.) – There is still a chance you can get them back before they are overwritten and you can recover data stored on the device

» In short

I/O is a shortened name of "input-output". In general, the system sends a connection error message "The request could not be performed because of an I/O device error"

» Prevention is cheaper than repair

There are two possible reasons for card error:

A.) – The main reason for the failure of FAT32 or NTFS file system, is that simply your shoot micro SD card from the USB input on your laptop (computer)

This operation is strictly prohibited. In Desktop, around the clock, on the Taskbar, can find a small pop-up menu, where can disconnect, so can save file format from destruction, and data remains intact

B.) – Or an error occurred in boot sector, in partition FAT32 or NTFS from SanDisk Micro SD

What happens in this case, is that the Windows (Linux) system open the Micro SD card, and use files, but because of elimination sudden from cardreader, the program has no time to stop the process, so delete the partition table (FAT32, NTFS)

1.) – Turn back into RAW, after suffering an improper operation, and erase all data

RAW file system (manufacturers use raw partitions), deteriorated, because:

1.) – The partition table of the device (hard disk, USB drive, SanDisk SD Card) is not yet formatted

Or:

2.) – FAT32 or NTFS file system was deleted, because not "Safely removed" from cardreader, so was is restored to factory RAW file system

» Three good advice:

A.) - Save data stored on Micro SD card, pictures, music, video, via USB cable, Bluetooth or (if available) online on your computer, and then remove SanDisk Micro SD Card from the reader, and insert then in cardreader built in laptop

B.) - If you want to save data using a card reader built in your laptop, or using an adapter card USB, unplug first from the Taskbar, in the small pop-up menu, located near to the clock, so you can disconnect in safe mode your device

C.) - When you create and save text files, photo, video etc. Do NOT USE accented characters

In case of deletion, data can be recovered, but it is possible that the recovery programs does not know accented characters, those images, or other files that contain accented characters, thus will ignore or will mark as useless file

» I have made so

Solution for data recovery:

I wanted to save a video from a 32 Gb. SanDisk Micro SD card, but the card reader built in laptop (computer), sent an error message «The request could not be performed because of an I/O device error»

1.) – I pressed Windows + R buttons simultaneously on the keyboard, and typed in the Run Run window: diskmgmt.msc

2.) - Appeared Windows Disk Management console

I saw immediately that SanDisk Micro SD card is marked with a black band, which means it is not alocated, not active, is unformatted

Disk Management

I do not could format in any way, so introduced the Windows installation disc in the DVD drive, like want reinstall the system

3.) - I restarted my computer

4.) - Computer need to boot from Windows installation disc

5.) - Asked to press a key on the keyboard to begin installing

In the next window I did NOT CHOOSE INSTALL:

6.) - On the left, on the bottom of the window I clicked on the link Repair your computer

7.) - I clicked on the Troubleshooting icon

8.) - Here on Advanced Options icon

9.) - Finally, on the Command button

By turn, in the Command Prompt window, I introduced the following commands:

Attention: Some commands have spaces between characters, and after each command press "Enter"

1.) - diskpart

2.) - list disk

Here list the number of discs detected, of which the number must be entered on the SanDisk Micro SD card card (eg. 0,1,2,3 etc.)

3.) - select disk (eg. 0,1,2,3 etc)

4.) - convert disk (eg. 0,1,2,3 etc)

5.) - basic

This procedure helped to repair corrupted Partition Table of the device, so that Windows has detected correctly, and I could format

Or:

In the command line, I could introduce the following commands, which could perform formatting directly:

1.) - diskpart 2.) - list disk 3.) - select disk 4.) - select partition 5.) - active 6.) - format

If your computer is attacked by a virus

2.) - diskpart 2.) - list disk 3.) - select disk 4.) - clean

» Three good advice:

Once completed, I removed the Windows installation disc from the DVD drive, and restarted the computer. After launching Windows system, in My Computer I formatted SanDisk Micro SD card. Right-click on the drive and Format

1.) - I downloaded the free program Recuva ...

2.) - I installed

3.) - With this program I searched all lost data

4.) - I selected all, and saved on the hard disk the videos, photos, etc.

It did not take more than 10, 15 minutes (without the program Recuva)

Suggestion:

A.) - If you can not activate the card under Windows, try Linux. When you simulate a Linux installation, in the partitioning portion, choose SanDisk Micro SD card. Warns, that the system can not install on this device, but it is enough, because already activated the card, we can stop and exit the installation. After restarting Windows system, you can format your SD card

B.) - On this page is a a description of a pendrive error, but with same method can be used to SD cards. Here's the description ...

» More Details

Data recovery solution

If your micro SD card SanDisk is not accessible for an error, or send a message "The request could not be performed because of an I/O device error", do the following:

1.) – Press Windows+R keys simultaneously on the keyboard

Windows+R

2.) – In the Run window, type: diskmgmt.msc

diskmgmt.msc

3.) – Start Disk Management console

Here, we see that SanDisk Micro SD card is marked with black band, which means it is not active, it is unformatted, to be repaired

marked with black band

For repaire, insert the Windows installation disc in the DVD drive, like we want reinstall the system

4.) – Restart your computer

5.) – If do not boot from installation disc, you can reconfigure in BIOS

Modify your boot order to force your computer to boot from a DVD drive, or USB that contains the installation disk

To access the BIOS, you’ll need to restart your computer and press a specific key at the start of the boot process

Do the following to configure BIOS (Basic Input / Output System):

A.) At the start, press DEL or F2 key on keyboard continuously

B.) Look for a similar entry: Boot priority

C.) With buttons on the keyboard, using the arrow up - down, left - right (happens to be F5 or F6), set the DVD or USB drive to boot first. Finally, press F10 to exit

6.) – After a successful transition will ask you to press a button to start the installation

marked with black band

If is necessary, in the next window, select language

In the next window, DO NOT SELECT installation:

7.) – On the left, bottom, click on Repair your computer link

Repair your computer

8.) – Next click on Troubleshooting icon

Troubleshooting

9.) – Click again on the Troubleshooting

Click again on the Troubleshooting

10.) – Select Advanced Options icon

Advanced Options

11.) – Finally, select Command Prompt

Command Prompt

By turn, in the Command Prompt window, type the following commands:

Attention: Some commands contain spaces between characters, and after each command press "Enter"

1.) – diskpart

It appears another window where type the following commands:

2.) – list disk

Here list the number of disks detected, of which, must be entered the number of SanDisk Micro SD card (eg. 0,1,2,3 etc.)

3.) – select disk (eg. 0,1,2,3 etc)

4.) – convert disk (eg. 0,1,2,3 etc)

5.) – basic

enter the number of SanDisk Micro SD card

This procedure can help restore the partition table of the device so that Windows will detect your system correctly, and can be format

Or:

In the command line, could introduce the following commands, which could perform formatting directly:

1.) - diskpart 2.) - list disk 3.) - select disk 4.) - select partition 5.) - active 6.) - format

If your computer is attacked by a virus

2.) - diskpart 2.) - list disk 3.) - select disk 4.) - clean

In the end

1.) – Download the free Recuva

2.) – Install

3.) - With this program searches all lost data

4.) - Once you have selected all, you can save to your hard disk your videos, photos, etc.

» Epilogue

1.) - Of course, if you have very important files, is recommended to use Payed versions of programs

2.) – For other errors, you can help only companies specialized in this profile

End

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The site was launched in 2007. After termination of the support for the Windows '98, the site moved on web hosting webhosticon. The first descriptions were made for XP, however, following the cessation support Microsoft XP (Experience), Windows7 and Vista many descriptions were deleted. From 26 October 2012 more Windows 8 and 8.1 tips have been added, and in late 2014 October tips for Windows 10. Meanwhile, the facade of the site has changed twice, but in early 2016 with the spread of smart phones, tablets, has become important to turn the site into responsive «mobile-friendly». Current website design, optimized for mobile devices, was created in the first months of 2017

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