If you see the Windows folder, you are in the correct drive letter. Type the following command to verify you are in the correct drive to restore the Registry and press Enter: dir Command Prompt in Advanced startup Type the following command to enter into the correct drive where Windows 10 is installed and press Enter: d:\ However, in most cases, the drive letter is D:\. While the operating system is installed on the C:\ drive, when you boot your computer on recovery mode, this drive letter could change to something else.
Now you need to move to the drive letter where Windows is installed. When the device starts with Command Prompt, it will start on X:\Windows\System32.
