Engegar: Bootable USB Maker

Use your Android phone to prepare a USB installation or recovery drive from a downloaded Windows or Linux image.

Pick an ISO or IMG file, connect a USB flash drive through a compatible USB OTG adapter, and review the named drive before confirming its erasure. Everything already on that USB drive will be erased.

Windows images containing install.wim are written to a FAT32 drive for UEFI. Large WIM files are split into parts that fit FAT32. Supported hybrid Linux images and raw disk images are copied directly.

Engegar checks image structure, probes USB capacity and reads the written data back. It reports a copy as verified only after the read-back matches. Interrupted sessions are recorded so you can start again.

Requirements and limits
Android 8 or later with USB host support, a compatible OTG adapter, a writable USB Mass Storage drive and an image you have already downloaded are required. Use a drive with enough capacity; 16 GB or more is recommended for Windows.

Images using solid install.esd are not supported. Windows legacy BIOS mode and Windows setup requirement bypasses are unavailable. Image checks do not establish authenticity, licensing or freedom from malware. Obtain images from their publishers.

Physical USB drive and computer boot compatibility has not yet been confirmed for this release. Read-back checks copied data; it cannot guarantee that a particular computer will boot. Follow your computer manufacturer's one-time boot-menu instructions.

The app processes images and write-session records locally. It has no network permission or account. A visible foreground-service notification supports the user-started USB write. Diagnostic details are copied only when you choose that action. External website and feedback links open another app.

Engegar is an independent utility and is not affiliated with Microsoft or any operating system or computer manufacturer.