0X8007045B

A system shutdown is in progress.

Symbol / family

ERROR_SHUTDOWN_IN_PROGRESS

Signed decimal

-2147023781

Unsigned decimal

2147943515

What it means here

Windows rejected work because shutdown or restart processing had already begun.

What to check next

1. Confirm whether update, servicing, policy, or user action initiated the restart.
2. Allow shutdown to complete before retrying the operation.
3. Review orchestration logic so deployments do not overlap restart windows.

Technical reference: Microsoft documentation or Microsoft-hosted support material