Because this is an OEM ISO, during installation it will:
If you want to choose a specific edition (e.g., Enterprise), create a simple ei.cfg file or use the sources\ei.cfg workaround, but that requires editing the ISO. windows 10 x64 19h1 10in1 oem esd enus july 20 top
Windows_10_x64_19H1_10in1_OEM_ESD_enUS_July20_Top.iso
├── boot/ (bootmgr, BCD, boot.sdi)
├── efi/ (UEFI boot files)
├── sources/
│ ├── boot.wim (WinPE for installation)
│ ├── install.esd (10‑in‑1 compressed image)
│ ├── setup.exe
│ └── ei.cfg (optional edition override)
├── support/ (debug/tools)
├── autorun.inf
└── setup.exe (root)
The install.esd file size is usually 3.5–5 GB instead of ~6–7 GB for an equivalent WIM. Because this is an OEM ISO, during installation it will:
The "July 20" tag is the most critical part of this specific build for IT professionals. If you want to choose a specific edition (e
By July 2020, the world was in the midst of the COVID-19 pandemic, and remote work was becoming the norm. Microsoft released several critical security updates in the summer of 2020.
Having an ISO that includes updates up to July 2020 meant that technicians could install the OS without immediately having to download hundreds of megabytes of security patches via Windows Update. It saved time and bandwidth—a "slipstreamed" image that was current for its time.