How to fix error 'Drive is not accessible. Access is denied' on Windows 10/8/7?

Posted by Molly to Data Recovery on September 14th, 2018

Try out the 4 methods to fix error 'Drive is not accessible. Access is denied.' To avoid data loss, remember to recover data from the inaccessible drive with free data recovery software such as iBoysoft Data Recovery at first.

Quite a few people have encountered the error: 'H:\ is not accessible. Access is denied.' when tried to open a drive on Windows 10/8/7. This error prevents users from accessing the files stored on that drive, including videos, music, images, documents, emails, etc. Why does this error popup? How to fix this error and access the drive without losing data? Keep reading.

Drive is not accessible. Access is denied. Why?

This error is usually a result of file system corruption or physical damage to the drive. It may occur to external hard drives, USB drives, Pen drives, SD/memory cards and other storage devices. As for file system corruption, there are the possible causes.

1. A drive is ejected or unplugged improperly.
2. File system of the drive corrupted. Specifically, that's DBR, MFT file corruption.
3. Sudden power failure happened.
4. Virus infection or malware attacks.

If the drive is physically damaged, you need to send it to an expert for reparation or replace it with a new one.

USB drive not accessible on Windows 10

How to fix 'Drive is not accessible. Access is denied.' on Windows 10/8/7?

Method 1: Run CHKDSK to fix the inaccessible drive.

chkdsk /f is a command line to check for bad sectors on the disk and recover any readable information. Though not always useful, you can try it without worrying about data loss when get the error 'Drive is not accessible. Access is denied.'

Step 1: Type "cmd" into the search box from Start. From the search results, right-click on Command Prompt and select Run as Administrtor.

Step 2: Enter "chkdsk /r *:" in the pop-up window and press "Enter". For example, if the inaccessible drive is disk H, enter "chkdsk /r h:"

Step 3: Reboot your computer and see whether the "H:\ is not accessible. Access is denied." error has been removed.

Please note that CHKDSK is not available for RAW drives. So if you get such a message, you need to move to the next method.

Method 2: Recover data from the inaccessible drive, then fix the error by reformatting.

Usually, we have stored tons of data on the drive which became inaccessble. So, data recovery from the inaccessible drive is of vital importance. iBoysoft Data Recovery is such free external hard drive data recovery software which can help.

iBoysoft Data Recovery is able to detect and recover data from inaccessible, corrupted, formatted, unreadable SD/memory cards, external hard drives, USB drives, Pen drives, CF cards and other storage devices. It is one of the best data recovery software for Windows 10/8/7/Vista/XP and Windows Server 2019/2016/2012/2008/2003.

Step 1: Recover data from the inaccessible drive with iBoysoft Data Recovery.

1. Free download iBoysoft Data Recovery and install it.

2. Launch iBoysoft Data Recovery.

Recover data from inaccessible drive with iBoysoft Data Recovery

3. Select the inaccessible drive and click "Next" to start scanning for all lost files.

4. Select the files you want to get back and then click "Recover".

After recovering data from the inaccessible drive, you can go ahead to reformat it.

Step 2: Fix the error "Drive is not accessible. Access is denied." by reformatting.

1. Go to Disk Management.

2. Right-click on the inaccessible drive and select Format.

3. Setup the required information and click Start. The process will finish in minutes.

In this way, you can get rid of the error message: "Drive is not accessible. Access is denied."

What's more, if you can find the drive in This PC/MyComputer, you can also try the following methods to fix the error "Drive is not accessible. Access is denied."

Method 3: Take Ownership of the inaccessible drive.

Usually, a drive not accessible on Windows PC is due to the missing of authority to the drive. To access the drive, you need to take the ownership of the drive in 3 steps.

Step 1: Right-click on the inaccessible drive and choose Properties.

Step 2: Select the Security Tab.

Step 3: Under Group or user names, choose your account name to check if you have the permission to access the drive.

If you don't have the permission to access the drive, go to next method.

Method 4: Add Authenticated User to the inaccessible drive.

Step 1: Follow the steps as above and go to the Security Tab.

Step 2: Click on Edit. The Permissions box will appear.

Step 3: Click on Add button to continue.

Step 4: Add a new user named "Authenticated User" and click on OK.

Step 5: Tick the Allow box after "Full control" option.

Step 6: Click on Apply then OK.

Have you fixed the error 'Drive is not accessible. Access is denied.'? If not, don't hesitate to let us know.

Still have questions?