> For the complete documentation index, see [llms.txt](https://documentation.2pintsoftware.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://documentation.2pintsoftware.com/deployr/1.2/reference/step-definitions/apply-operating-system-from-cloud.md).
# Apply operating system from cloud
The **Apply Operating System from Cloud** step is similar in many ways to the **Apply Operating System** step. Both apply a WIndows image (.wim) file, with an optional unattend.xml, to the volume formatted as S: by the **Format disk** step. Unlike the Apply Operating System step, the operating system to be applied can be downloaded directly from Windows update.
To determine which image to apply, select the operating system, version, language, edition, and architecture for the OS.
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