Net Framework 3.5 Instant
Before you disable that Windows Feature or skip it in your deployment script, remember:
It’s easy to focus on .NET 8, 9, and the modern cross-platform world. But a huge number of enterprise applications—especially in manufacturing, healthcare, and legacy ERP—still run on . net framework 3.5
If you see error 0x800f0954, that usually means Windows Update tried to take over. Use /LimitAccess to force it to use your local source. Before you disable that Windows Feature or skip
Get-WindowsOptionalFeature -Online -FeatureName NetFx3 net framework 3.5
Still shipping .NET Framework 3.5 in 2024? Here’s why you shouldn’t ignore it.

