If that is the case, the command might be specific to one machine.

Ensure you downloaded the file from a trusted repository (like GitHub). "Freastern" or "Sarah" might be the username of the developer who created this specific configuration. Extract First: Never try to run complex software from a compressed folder. Always Extract All to a permanent directory first. Check for a ReadMe: Look for a README.txt INSTALL.md

Open your terminal or command prompt and navigate to the extracted folder. Run install.bat as an administrator.

Ensure the folder where you installed Freastern Sarah is not marked as "Read Only." Why Use CustomZip over Standard Tools?

: Prevent any active malware from communicating with its server. Run a Full Scan : Use a reputable antivirus tool such as Malwarebytes Windows Defender to scan your system. Check Browser Extensions

Note: If "Freastern Sarah" refers to a specific piece of proprietary software or a localized tool released after this knowledge cutoff, the general principles of Android flashing (Unlock Bootloader -> Flash Recovery -> Flash ZIP) remain the standard architectural pathway.