1. Close all running open programs on the partition or logical drive you want to convert. 2. Click the "Start" button, click "All Programs", click "Accessories", right-click "Command Prompt", and then click "Run as administrator". If the system prompts you for an administrator password or confirmation, enter the password or provide confirmation. 3. In the "Command Prompt" window, type **convert drive_letter:/fs:ntfs** (where drive_letter is the drive letter of the drive you want to convert), and then press Enter. For example, **convert E:/fs:ntfs** will convert drive E to NTFS format. 4.