When a Toshiba hard drive has been locked, you will need to unlock it to install new software. You can lock your hard drive's as a security precaution to prevent its data from being overwritten. Unlock your Toshiba laptop from a DOS prompt; DOS is the text-based backbone to Microsoft Windows. Unlocking a Toshiba hard drive takes about five minutes.
Video of the Day
Step
Press the "Start" button, then click "Run."
Step
Type "Cmd" into the command prompt and click "OK."
Step
Type "unlock z:" at the DOS command prompt. Replace "Z" with the drive letter of the Toshiba hard drive. For example, if the Toshiba hard drive is the "C:" drive, type "unlock C:"
Step
Click the "X" in the upper-right corner of the DOS prompt to close it.
