My Disk Says “D:/ is not accessible. Parameter is incorrect.”

“When I tried to access my local D:/Drive, my disk says “D:/ is not accessible. Parameter is incorrect.” I don’t know way and I didn’t do anything before this. How can I fix the error without data loss?”

If you get “The parameter is incorrect”error when you try to open a disk drive on your computer and find you cannot access your hard drive, you can follow the instructions in this article to repair the inaccessible hard drive.

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How do Fix the Parameter is Incorrect in Windows10/8/7?

There are many reasons can cause this problem, and “The parameter is incorrect” error often happens to your hard disk, eternal hard drive or USB flash drive due to system corruption or hard disk errors, bad sectors can also make your hard drive inaccessible. The reasons are various, but the results are made the same. Here are some solutions for you to fix the parameter is incorrect in Windows 10/8/7.

Fix 1: Fix “The parameter is incorrect” Error with Disk Management Tool

Formatting the inaccessible hard drive is the first way you can try to fix the problem. Right-click “My Computer”, choose “Manage”and enter “Disk Management”, find your inaccessible hard drive and click “Format” option.

Notice: after formatting , you can open the hard drive, but the data on the drive will be deleted, if you have important files on the device, you can use iCare Data Recovery pro to recover data.

Fix 2: Repair “The parameter is incorrect” Error with CHKDSK Command Prompt

If this error is caused by bad sectors on the hard drive, you can run CHKDSK command prompt to fix the parameter is incorrect error.

Click “Start” option, choose “Run” command on the list, system will pop out a command window. Type “CMD” in the window, click OK to go.

Type “chkdsk M:/f/r” in the window,(M is the drive letter of the error hard drive) press “Enter” to check.

Notice: CHKDSK command prompt may cause some data loss on the hard drive, it would be better if you had a backup of the important files.

Fix 3: Fix the Inaccessible Hard Drive by Reinstalling the Disk

If your hard drive is inaccessible, you can also try to reinstall the drive. Steps are as follows.

Click “Start” option, choose “Run” command on the list, type "device manager" or "devmgmt.msc" in the window, click OK to go.

Find the inaccessible hard drive, right click it, choose to “Uninstall” option.

Unplug the hard drive, and insert your external hard drive again.

Recover Data from the Inaccessible Hard Drive

If you have important files on the hard drive, you can recover the data with data recovery tool. You can try iCare Data Recovery pro, which is an effective and safe data recovery program. You can free download here.

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Instructions to Recover Files from Inaccessible Hard Drive

Step1: Install the program on your computer. Run it, enter “Deep Scan Recovery”.

Recover files from inaccessible hard driveRecover files from inaccessible hard drive

Step2: Select your hard drive to scan.

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Step3: Preview the found data, recover those you needed, and save them to another drive.

Then you can recover all your files safely from the inaccessible hard drive.

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Writer of iCareAll Inc., is specialized in fixing various kinds of digital device problems.

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