Ultimate Boot CD

If you're looking for a UBCD4Win alternative, you can check out the UWBCD project, Ultimate Windows Boot CD. They just launched their alpha and it ditches WinPE, BartPE, and other preinstallation environments to harness the power of ReactOS as an open-source live disk that can directly interact with a Windows partition to perform native tasks.

WARNING!: This software is still in the alpha stage and highly developmental and not ready for consumer use, use at your own risk! Developers and testers welcome!

https://www.uwbcd.org/forum/