How do I unlock the drive where Windows is installed?

When the hard drive where you installed Windows 10 is locked, you may run the following command to unlock it:

1. In Windows, click the Start and enter cmd in the Search field, then press the Enter key.
2. Type bootrec /RebuildBcd and press Enter.
3. Type bootrec /fixMbr and press Enter.
4. Type bootrec /fixboot and press Enter.