Instead of using a pre-made, potentially risky custom OS, a far superior method is to , which includes the "Aqua" theme you desire. This gives you complete control and ensures your system is safe and up-to-date. You can start with an official Windows ISO from Microsoft, then integrate your desired theme and other customizations.

A clean installation will completely erase your target storage drive. Back up all critical files, game saves, and browser profiles to an external drive or cloud storage.

Select your preferred language, time format, and keyboard layout, then click Next . Install Now: Click the central installation button.

Changes to the close button (aqua instead of red) and specialized startup animations. Sounds: A unique, pre-loaded sound scheme. Prerequisites for Windows Aqua ISO Install

Choose your language and keyboard layout. Install Now: Click the center button to begin.

Plug in your secondary USB drive and install your network (LAN/Wi-Fi) drivers first. Once connected to the internet, install your graphics card drivers (NVIDIA/AMD/Intel) to restore proper resolution and refresh rates. 2. Run the Aqua Toolkit (If Included)

Under , click Select and browse to your downloaded Windows Aqua ISO file. Choose your Partition scheme : GPT: For modern computers using UEFI BIOS (Recommended). MBR: For older computers using Legacy BIOS.