Windows Server 2016 Build 14393970 Enus April 2017 2021 May 2026

Microsoft permitted direct upgrades from Server 2016 (any build ≥ 14393.0) to Server 2019 or 2022, provided:

Thus, April 2017 acted as a “minimum safe stepping stone” for long-term migration planning.

The enus (en-US) designation ensures that: windows server 2016 build 14393970 enus april 2017 2021

For global enterprises, en-US is typically the baseline image before adding language packs.

If your vulnerability scanner (Nessus, Qualys, SCCM) in 2021 flagged the absence of patches from 2017, you had to install KB4015217 before addressing more recent CVEs like CVE-2021-36942 (PetitPotam NTLM relay) or CVE-2021-26414 (DCOM RPC). Microsoft permitted direct upgrades from Server 2016 (any

Skipping straight to a June 2021 update would fail because the update’s manifest required at least build 14393.970.

Even in 2021–2023, KB4015217 remained available on: Thus, April 2017 acted as a “minimum safe

Important: Verify the SHA-1 hash for security. The genuine en-US MSU file named windows10.0-kb4015217-x64_3a8b312bba0f9372f1e5b2e735f1d8e8945c0a94.msu (size ~935 MB).

# From elevated PowerShell
wusa.exe "C:\updates\windows10.0-kb4015217-x64.msu" /quiet /norestart
# Check success
Get-HotFix -Id KB4015217

For offline servicing of a WIM or VHD:

dism /Mount-Image /ImageFile:C:\mount\install.wim /Index:1 /MountDir:C:\offline
dism /Image:C:\offline /Add-Package /PackagePath:C:\updates\kb4015217.msu
dism /Unmount-Image /MountDir:C:\offline /Commit