Things You'll Need:
- SD card reader
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Step 1
Check the sides of the SD card to see if it has a physical locking mechanism. Push the plastic locking pin into the "unlocked" position.
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Step 2
Insert the SD card into the SD slot of your HP laptop's card reader. Click "Open a folder to view files." Attempt to open or change any of the files on the SD card to see if you are still receiving a write protection error.
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Step 3
Right-click one of the files on the SD card and select "Properties." Navigate to the "General" tab.
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Step 4
Scroll down to the "Attributes" heading. Un-check the check box labeled "Read Only" and then click apply. Attempt to open or change the file again to see if the write protection error has been resolved.
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Step 5
Open the Start menu and click the Search feature. Type "Regedit" and then double-click the registry editor icon.
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Step 6
Navigate through the registry editor's folders to the sub-folder named "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies." Right-click the registry key labeled "Write Protect" and choose "Edit."
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Step 7
Click inside the "Value" text box. Delete the current value and type "0." Click "OK." Close the registry editor and attempt to open or change one of the SD card's files again.
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Step 8
Close the SD card's window. Open the Start menu and click "My Computer." Right-click the drive letter for the SD card and choose "Format." Click "Start."










