CYAN Win2HDD

A fresh Windows installation, without a USB drive.

CYAN Win2HDD prepares Windows 10/11 x64 reinstallation on UEFI/GPT PCs using installation files stored on an internal drive. A clear Vietnamese interface guides you through selecting Windows, choosing partitions and reviewing the installation plan.

Built around a clear workflow

• Official Microsoft media: choose a Windows ISO and language, track downloads, cancel transfers and verify SHA-256.
• Real edition selection: read the editions available in your ISO, including Home and Pro when present.
• Three steps: select Windows, choose storage, review and prepare.
• Checks before deployment: UEFI/GPT, available space, administrator access, BitLocker state and staging partitions.
• Separate confirmations: creating a boot entry, restarting and erasing the Windows partition require distinct actions.
• Task history: review logs, resume a prepared job and remove the boot entry created by CYAN.

Your CYANPRO account

Sign in to view your plan, expiry and device usage. Saved sessions are encrypted for the current Windows user; passwords are not stored. A successfully verified license can work offline for up to 72 hours while still unexpired.

Browsing the app and downloading Windows ISOs are free. Preparing installation files and creating a boot entry require a valid license. Boot-entry cleanup remains available for recovery. A CYAN Win2HDD license does not include a Windows license.

The app checks versions with CYANPRO and downloads the release selected by the server. Install with Setup to use in-app updates. Source code is maintained in a private GitHub repository.

Preview requirements

Windows 10/11 x64, UEFI/GPT, at least 8 GB RAM, a Windows partition of at least 64 GB, and a separate NTFS staging partition with sufficient free space. Windows and staging volumes must be fully decrypted.

Experimental preview: real Microsoft ISO downloads and automated software tests have passed; the complete boot–format–apply–OOBE workflow has not yet been accepted in a disposable VM. Test deployment only in a dedicated UEFI VM. Automatic partition shrinking, Legacy BIOS, ARM64, cloning and VHD are not supported.