Last week, I received the following warning:
“Drive is not accessible. The request could not be performed because of an I/O device error.”
Now, what should I do since I don’t know anything about I/O device error? How to fix I/O device error?
What Is An I/O Device Error?
If Windows cannot perform an Input/Output action when it is trying to access a drive or disk, you will receive the I/O device error message that reads “Drive is not accessible. The request could not be performed because of an I/O device error.” In addition to hard disk drive, the I/O device error also occurs on other removable devices like USB flash drive, SD card, and so on.
Why Does I/O Device Error Occur?
1. Hardware device cannot use the transfer mode Windows is trying to use.
2. The hard disk you are trying to use is damaged.
3. Faulty or loose connection with the hardware.
4. Outdated driver installation for the affected hardware device.
How to Fix the I/O Device Error
1. Check hardware Connections
Step 1: Restart your PC, and then reaccess the drive or disk.
Step 2: Connect your drive or disk to another computer to confirm that the drive or disk is not damaged.
If you still get the I/O device error, you can try the following method.
2. Connect all cables correctly
You have to make sure that the cable that connects the computer to the drive is functioning correctly if your external drive encounters the error message “Drive is not accessible. The request could not be performed because of an I/O device error.” The external hard drive will not work correctly once the cable fails. Note: avoid changing cables for an internal drive for a desktop computer. Otherwise, many internal items can be easily damaged.
3. Update device driver
Sometimes, you will receive the I/O device error because your computer storage device drive is outdated, damaged or incompatible with your attached device. Now, update it.
4. Change drive letter
If the drive letter is changed specified with a wrong drive letter, you will get the error message: “The request could not be performed because of an I/O device error.”
Here, changing drive letter can easily solve this issue.
Step 1: Press Windows+R to open Run, and then type diskmgmt.msc in the empty box and tap OK.
Step 2: Right-click the target drive you want to operate and choose “Change Drive Letter and Paths…”
Step 3: Then click Change button.
Step 4: Finally, choose a suitable drive letter and click OK button.
5. Check and repair disk errors
NOTE: before checking and repairing errors, you had better recover data from the drive with I/O device error, for repairing errors may overwrite original data. Here, to recover lost data from the drive with I/O device error without affecting the original data, you can try using MiniTool Power Data Recovery, for it not only contains five recovery modules to cope with different data loss scenarios but also can keep data security in the process of file recovery. By using this professional and read-only data recovery tool, you can effectively recover lost data without bringing any damage to the original data.
Step 1: Open the command prompt.
Step 2: Type “chkdsk /f [drive letter]” into the command prompt and press Enter.
Step 3: Type Exit and press Enter.
6. Change transfer mode
As we know, another cause of the I/O device error is that Windows is using an incompatible transfer mode for the hardware. Now, try the following steps to change the transfer mode.
Step 1: Right-click My Computer or This PC.
Step 2: Select Manage.
Step 3: Select Device Manager.
Step 4: Expand IDE ATA/ATAPI controllers.
Step 5: Right-click the channel where the appropriate drive is connected. Typically, this channel is Secondary IDE Channel.
Step 6: Click Properties.
Step 7: Select PIO Only in the Transfer Mode box for the device that represents the appropriate drive. Click OK and exit all windows.
Now, you can try access this drive again. If the problem is fixed, you will not get the error message.
7. Format hard drive
In general, if all above solutions cannot help you, you can try formatting the damaged drive.
Step 1: Press Windows + R to open Run, and then type diskmgmt.msc in the empty box and tap OK.
Step 2: Right-click the target drive you want to operate and choose “Format…”
Step 3: Then, specify volume label, file system and allocation unite size, and check “Perform a quick format”, and finally click OK button.
NOTE: Formatting will delete data. Thus, you have to recover data from the drive with I/O device error before formatting. And, if you don’t know how to recover lost data without affecting the original data, you can try using MiniTool Power Data Recovery because of its excellent performance, high security, and simple operations.