HD with Switch to write protection

[Guest]

Exist HD with Switch to write protection ?

 

[RealBeast]

I don't know of any but if you are using an external drive it is simple to write protect it in Windows 7 with a registry key entry:

Login as an administrator on the computer. Open regedit.exe by typing that in the start search box. Navigate to this key:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\StorageDevicePolicies
You might need to create the key StorageDevicePolicies if it does not exist yet.
Select the StorageDevicePolicies key with a right-click into the right window.
Select New > Dword (32-bit) Value from the menu and name the new entry WriteProtect.
Double-click the new WriteProtect key and change the value to 1. If you want it to be writable again you can change it back to a value of 0.
Save the key changes by clicking OK after each.

And do not use an external drive as your only backup as they are notoriously unreliable for such use.

You can also use diskpart to accomplish this, if you prefer that let me know and I'll give you the appropriate commands.

 

[RealBeast]

I've seen a bunch of flash memory sticks with switches, but no modern external USB hard drives.