My external hard disk is write protected i want to unlock it.

Download the "password protection manager" software from the Sony website. When installed it will detect your Sony External hard drive.

There is possibly a write protect switch in the hard drive case, I will confirm this and get back to you.

Here is your Dell Hard Disk Master Password for HDD serial #44W4Z3Y3764-595B
Your HDD Master Password is: w2cuzked
When asked for HDD Password use the HDD Master Password to unlock the HDD password. The Dell HDD Master Password is what Dell can calculate for you or a third party.
Thanks to the great guys at unlockbiosrecovery.com for providing the HDD Master Password that will unlock your hard disk. They can unlock your laptop bios or hard disk.

there will be lock on either side just slide it down

According to Lenovo and many other manufacturers’ website, if you forget your hard drive or hard disk password, there is no possible way to reset your password or recover data in the hard disk drive. Basically the hard drive is unusable. Scary right? However, this is often not true.
Most people are not aware that most hard disk drives have the ability to set a hardware password, just like the Bios password for motherboards, thus making the drive completely inaccessible unless a correct password is provided during the BIOS POST test. Usually these features can only be found in laptops, this is when you set a password on your notebook, the hard drive together with the motherboard becomes locked.
Most experts would say if you forget the original HDD or Bios password, there is no way of restoring it by generic system tools. Unlike the Bios password where there is a master key or with the removal of the bios battery, the password is erased from the flash memory thus the settings is restored to factory settings without the password, however, this does not applies to hard disk.
HDD Unlock Wizard is a user-friendly application which allows you to easily remove HDD password. IDE and SATA hard disk drives are supported. Both User and Master password can be removed. Please note that while unlocking, Remember HDD Unlock Wizard will erase and re-certify the drive, meaning to say all data in the disk is lost and not recoverable. HDD Unlock Wizard incorporates proprietary unlocking algorithms which allow removing an unknown HDD password and making hard drive usable again.
Download Hdd Unlock Wizard from here
http://www.hddunlock.com/download/
It may not be possible to recover the hard drive password or to unlock it; however, it is possible to remove the password together with the data, thus making your hard disk accessible and usable again.
Or Try Hiren's boot cd in this there is a operating system which boot from direct your cd/dvd rom. try it if it may open your locked external disk. And if your hard disk open in it just copy the data from the drive to any other drives and after copying your data format it. Then you see there is no password dialog box open in your normal windows log in.And for future if you use any software for password protection try to memorize the password in your mind or write it somewhere.
You can contact me or thanks me on my email id [email protected]

format it

Try inserting your problematic HD into casing for external HD, and then collect data that you need. Later on you can format the HD and use it as a NEW.

1. Right click on My Computer
2. Choose explore, or open (if explore is not there)
3. Right click on the drive letter for your external Western Digital drive
4. Select Properties
5. Look at the Security Tab
6. Click the edit button.
7. Make sure Write is checked for the Users

If this doesn't match your screen, write a comment to tell us what you see on the screen at each step. We can follow up with you.

Usually a protected hard drive has been in a laptop and the hard drive password is setup from the laptop's BIOS configuration. This password is embedded on the hard drive's chip.
This password protects the data from unauthorized access and must be removed before reuse in another laptop or as an external hard drive.
There are no backdoor passwords available and needs to be removed using that laptop's BIOS configuration, you need to know the password to enable you remove the password peotection.

hey mate only thing i can think of is, on some external hard drives theres a switch on the side that write protects the data, you usually just have to change the switch over and it will work fine :-) all the best John