Given this breakdown, the string seems to describe a custom or specialized version of a Windows PE environment.
Typical workflows
: Provides a file explorer with enhanced capabilities for managing files and directories on the host system or within the WinPE environment.
Sergei Strelec WinPE 11-10 x64 (2025.02.05) – The Ultimate Rescue Toolkit Sergei Strelec's WinPE