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Solution 3: Check bad sectors for inaccessible disk using PartitionGuru free Note: If bad sectors are found on the hard drive and chkdsk tries to repair bad sectors, data on that drive might be lost. If you are prompted to dismount and schedule chkdsk on next restart, then type Y and press enter.
Please replace it with the drive letter associated with your disk. Note: G: is the drive letter of the disk in question.
Type command G: in Command Prompt and press enter. Open an elevated Command Prompt. Click Start button and click All Programs and Accessorie. Right-click Command Prompt and select “Run as administrator”. If you are asked to provide password or confirmation, type password or click “Allow”. Solution 2: Run check disk in Command Prompt to check disk errors Make sure USB port does not have power supply issue, as insufficient power supply tends to cause inaccessible drive. If all these do not work, you should try the disk on other computers. As to external hard drives, you can try unplug disk or different cable on different USB port. Make sure all cables are properly connected between storage devices and computer. Please note that if files in the disk are of great important, you should backup data or perform data recovery before trying any repairing actions. You can try following steps to fix make Windows access the disk in question. I tried DISKPART in Command Prompt to clean the disk but still failed and got error ‘ DiskPart has encountered an error: The request could not be performed because of an I/O device error’ Is there a way to override this? Any help would be greatly appreciated.” Solutions to fix Windows can’t access disk The disk check is block by error ‘The disk check could not be performed because Windows cannot access the disk’. “ My Toshiba external HDD can be recognized by Disk Management, but I am getting an I/O device error when I try to open it.
I clicked ‘Check now’ button to check this drive for errors and got a dialog box saying ‘The disk check could not be performed because Windows can’t access the disk’. In Windows Explorer, the disk shows 9.8GB of 70GB is free, but the Properties show 0 bytes used and 0bytes free. But when I tried to install new software to volume D, it always says the partition is full. “I just restored Windows from a previous system backup image and the system works well so far. Let’s see how Windows can’t access disk issue happens: It is common that a partition or disk becomes inaccessible, for example a volume can’t be opened in File Explorer and reports error message such as “ the file or directory is corrupted and unreadable” if you try to open it. If you are experiencing such problem, you can find solutions here. Sometimes Windows cannot access disk, network drive, shared folder or specified device path due to all kinds of causes. The topic of this post is about Windows cannot access issue which is common to many Windows users.