Based on changelogs from that era, the 2020.09.21 Update Patch addressed the following:
Before dissecting the patch, it is essential to understand the base product. Sergei Strelec’s WinPE is a bootable disk image (ISO) based on Windows 10 and Windows 8 Preinstallation Environments. It is not a standard Windows installer but a lightweight, RAM-loaded OS that runs entirely in your computer's memory.
The toolkit bundles hundreds of portable applications into a single, easy-to-navigate interface. Key components include:
The beauty of this compilation is its driver support. Sergei Strelec integrates hundreds of network, storage (SATA, NVMe, RAID), and chipset drivers, allowing the PE to see hard drives and SSDs that standard Windows installation media might miss. WinPE 10-8 Sergei Strelec 2020.09.21 - Update Patch
If you need a newer version of Sergei Strelec WinPE:
Manually update components:
Use WinBuilder (legitimate):
However, no release is perfect. Within weeks of the September 2020 launch, users discovered several issues—ranging from missing network drivers for Intel’s 2.5GbE controllers to bugs in the included registry editor.
This method modifies the offline ISO file, which you then re-flash to USB.
On October 14, 2020 — three weeks later — a major ransomware strain (later called Crylock) hit MSPs across Eastern Europe. It encrypted boot sectors, not just files. Normal recovery tools failed. But machines booted with the patched Sergei Strelec 2020.09.21 could run a hidden script: unlock_mbr.exe — which decrypted the bootloader in memory without triggering the ransomware's "tripwire." Based on changelogs from that era, the 2020
Sergei never claimed credit. He never even acknowledged the patch. But forum veterans knew: He saw it coming. The 2020.09.21 release wasn't just an update. It was a vaccine — disguised as a tool.
It was September 21, 2020.
Somewhere in a modest workshop cluttered with cables, dead hard drives, and dusty monitors, Sergei Strelec — a ghost in the machine — quietly released version 2020.09.21 of his legendary WinPE rescue toolkit.
No splashy launch event. No press release. Just a magnet link, a quiet forum post, and an ISO file small enough to fit on a 4GB USB stick. But within that ISO lived enough power to resurrect the digital dead. If recreating the USB/ISO: