What does Windows error code 7051 (ERROR_CTX_SHADOW_DISABLED) mean?

Status / error code:		Category:

Constant name:
Source:		Operating System:
Description: The target session is not configured to allow Remote Desktop shadowing.

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ERROR_CTX_SHADOW_INVALID	ERROR_CTX_CLIENT_LICENSE_IN_USE

ERROR_CTX_SHADOW_DISABLED

ERROR_CTX_SHADOW_DISABLED means the target Session Host policy does not allow remote control of the selected session. Shadowing can be disabled globally, restricted to view-only, or configured to require user consent.

Read the effective Remote Desktop Services shadow policy on the Session Host and confirm whether consent is required. Enable only the intended support mode through policy rather than trying alternate shadow commands against a host that forbids them.

What to check

Review the effective policy for remote control of Remote Desktop Services user sessions.
Choose the minimum shadow capability needed: view versus full control, with or without user consent.
Apply changes through the intended GPO and verify their effective result before retesting.

gpresult /h C:\Temp\rds-policy.html

Microsoft: Remote Desktop Services system error codes

Microsoft: Shadow a Terminal Server session

Microsoft: qwinsta / query session

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