Forum Discussion
VirginiaCavalier
Aug 28, 2025Iron Contributor
21390.1 Integrating/Installing CUs
I am trying to DISM the CUs into a base WIM of 21390.1. This is to test deployment and manual template configuration. I cannot DISM the CUs. Not any of the three. They all give the same error. I c...
GabrielStone
Nov 14, 2025Iron Contributor
Sometimes, CUs are targeted for specific versions or releases. Check the KB article associated with the CU to verify compatibility.