FlashBoot: Create bootable clone of Windows 10 or Windows 8.1 on USB thumbdrive

With FlashBoot, you can clone your existing Windows 10 or Windows 8.1 installation (including apps, settings, documents, games, browsers etc) from internal HDD or SSD to external USB thumbdrive or USB HDD.

Existing files will be compressed, so for this operation usually you need smaller capacity USB storage device than your disk C:. Typical compression ratio is 35-45%. During live sessions, Windows on USB thumbdrive will store all new files and all updated files in decompressed form.

System partition on USB storage device will have different unique identifier from original system partition on internal HDD/SSD, so there will be no conflicts or collisions when booting USB thumbdrive on the source PC.

This feature is particularly useful for travellers (who want to save time on reinstalling apps in Windows To Go installation) and as live backup copy (which will be of good use in the case of next ransomware virus attack, failed Windows update, or accidently deleted file).

1) Run FlashBoot Pro, click Next:

Create Bootable Clone of Windows on USB - Starting FlashBoot
Create Bootable Clone of Windows on USB - Starting FlashBoot


2) Choose "Full OS -> USB" in the the Main Menu:

Create Bootable Clone of Windows on USB - Choosing Full OS to USB in the Main Menu
Create Bootable Clone of Windows on USB - Choosing Full OS to USB in the Main Menu


3) Choose "Bootable clone of Windows 8.1/10 (for UEFI-based computers)" in this menu and click Next:

Create Bootable Clone of Windows on USB - Bootable clone of Windows 8.1/10 for UEFI-based computers
Create Bootable Clone of Windows on USB - Bootable clone of Windows 8.1/10 for UEFI-based computers


4) Choose which files and folders are to be excluded from the clone. If you have large enough USB thumbdrive or USB HDD, then you can leave all files and folders included:

Create Bootable Clone of Windows on USB - Choosing excluded files and folders
Create Bootable Clone of Windows on USB - Choosing excluded files and folders


5) Specify target USB storage device and click Next:

Create Bootable Clone of Windows on USB - Specifying target USB storage device
Create Bootable Clone of Windows on USB - Specifying target USB storage device


6) If necessary, change volume label, or leave it as is, and click Next:

Create Bootable Clone of Windows on USB - Volume label
Create Bootable Clone of Windows on USB - Volume label


7) Check summary information and click Format Now:

Create Bootable Clone of Windows on USB - Summary information
Create Bootable Clone of Windows on USB - Summary information


8) Wait for process completion:

Create Bootable Clone of Windows on USB - In progress
Create Bootable Clone of Windows on USB - In progress


9) Bootable USB storage device is ready to use. Click OK to exit:

Create Bootable Clone of Windows on USB - FlashBoot done
Create Bootable Clone of Windows on USB - FlashBoot done

This feature is available only in FlashBoot Pro, but FlashBoot Free can install fresh copy of Windows 8/8.1/10 (without apps and settings) to USB thumbdrive or USB HDD.

Hardware Requirements

USB 3.0 mass storage device is recommended, USB 2.0 is a minimum requirement (but please do not use old and slow USB devices).

Minimum capacity is 32Gb, 64Gb or more is recommended.