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This article is going to talk about 'The disk is write-protected' error on USB flash drive and SD card. It explains possible causes and solutions to remove write protection for USB drive and retrieve data when this error occurs. If you are troubled by this issue for the moment, you can read this guide before giving up the disk.

USB Protector is a small tool developed in.Net 4.0 to prevent malware infections through USB Removable Storge Drives. It can detect and eliminate malwares automatically And provides a full scan of the drive to find hidden files. USB WriteProtector is a application that can switch on, switch off and display the state of the USB write protection of the operating system. Tip: The batch file USB Write Protection does the same job. It is smaller and the write protection can be switched faster. Did you like my page, one of my freeware applications or online tools?

To continue using your device, or format the drive without problem, you'll need to remove write protection in Windows 10/8/7 to unlock the device. Here, you can directly download a USB write protection tool to automatically clear the lock state, or make some efforts with the manual ways of CMD and Regedit editor.
To remove USB write protection, please right click your USB drive or SD card partition to select “ Properties ” in Windows Explorer. Then you will see the free disk space. If the disk space is enough, but you still fail to copy files or folders with the disk is write protected issue, try the next way. Solution 4: Change File Status.

What is 'write protection' on USB disks?
Causes of USB write-protected error
How to add write protect to a flash drive?
How to remove write protection from read-only USB drive?
Solution 1: Check the drive for a physical lock
Solution 2: Disable write protection in Registry
Solution 3: Use Command Prompt to remove write protection
Solution 4: Check account permission
Solution 5: Make sure the USB drive isn't full
Solution 6: Ensure your USB drive is free from virus
Solution 7: Format the disk write-protected disk
Solution 8: Verify bad sectors
How to recover data from write-protected flash drive?
Free flash drive data recovery software
Steps to recover data from write-protected flash drive

What is 'write protection' on USB disks?

Write protection on USB flash drives or SD cards is a handy function aiming to prevent accidental file deletion and block suspicious files like virus and un-authorized sources. External data storage devices are very common devices and they are widely used these days, as they are portable and users can take them anywhere they want. When a USB disk is write-protected, it turns into read-only. In that case, any action to add or edit data into that disk will be denied. All attempts related to writing action will be prevented, such as add or create new file, edit existing data, delete files that already present, formatting current USB disk, etc. Another reason people only give readable access to their storage device is to prevent others from sharing content stored on the disk.

When you try to write data to such disk you'll get error message 'The disk is write-protected. Remove the write-protection or use another disk.' as shown in the picture below.

However, this feature may become a headache if it is not properly used or USB drive is corrupted. In that case, the error 'The disk is write protected' will drive you crazy, as you can't access data on that USB drive and the only option to fix it might be format write-protected USB complete, which won't be an easy job. What's worse, if files on that drive are important to you, formatting won't be a wise choice, for formatting wipes data. Thus you need to disable or remove write-protection from USB disk first. Let's look at a real case found from a forum:

'I recently bought a new laptop that installs Windows 10. I have four USB flash drives and one of them is now marked 'write-protected' for no reason, as I didn't do anything to it. I found a solution for windows XP and tried on my own computer. But it didn't remove write protection. I just want to copy files from the USB disk to computer and then reformat it. Can you help me on the write protection removal thing on Windows 10 computer or retrieve data?'

Causes of USB write protected error

Usb Write Protection Removal Software Windows

This error may appear for several reasons and this section lists the most common ones.

Read only switch

Many memory cards and USB flash drives have a small physical switch on the side edge. The switch is used to set write protect and makes the drive read only.

The flash drive is full

If the flash drive is full of files and does not have free space and it is likely to be write-protected. You can right-click on the disk and choose Properties to check how much free space available on the drive.

Security settings

Some computer uses or administrator of the machine set security setting on computer to prevent actions to write data to a USB disk. You need to remove such settings by modifying settings in registry.

The Read-only property

If you set files or folders on existing on the drive to 'Read Only', you'll receive this error message when copying, editing or replacing files. In that case, you need to navigate to file Properties to check whether the 'Read-only' option is selected.

Virus attack

Virus can infects everywhere data exists and cause various issues such as data damage, file loss, system crash, storage device failure, etc.

Drive is broken or has bad sectors

If causes mentioned above can't account for your case, it is likely your removable disk is broken or gets bad sectors. The disk might be old and just reaches its natural lifespan, as many disks have limitations on the amount of reading and writing data. Besides, normal read or write actions can't be done to bad sectors, thus you may need to seek help from disk verifying tools.

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How to add write protect to a flash drive?

If you have stored some important data on your flash drive, then it's a good choice to enable the write protection before inserting it to computers which is not well protected by an-virus software. There are chances that flash drive infects virus when connecting to public computers. Although write protecting on USB drive is not the foolproof action to prevent people from editing or deleting your data if they know how to disable this feature, it is better than keeping flash drive in open mode. Here is a handy tutorial to add write protect.

Method 1:

Examine the flash drive or memory card and find out the switch. You can move the switch to the lock location to enable the write protection for the device.

Method 2:

Set drive security permissions

Step 1 Right-click the drive letter associating with the flash drive in Windows Explorer and select 'Properties' from context menu.

Step 2 Click Security tab on the Properties Window, select 'Everyone' under Group or user names and click 'Edit' button.

Step 3 On the 'Permissions for Removable Disk' Window you can see a section named 'Permissions for Everyone' and two columns of check boxes. Check those under 'Deny' for items like Full Control, Modify and Write.

Step 4 Click Apply and then Ok button.

How to remove write protection from read-only USB drive?

Solution 1: Check the drive for a p