Home › Error codes › Win32 system codesIndependent reference

Win32 Error 1191 (ERROR_SHUTDOWN_USERS_LOGGED_ON): Meaning & Checks

1191 is an application or api context result. Microsoft’s system-code table describes this value as: “The system shutdown cannot be initiated because there are other users logged on to the computer.”

Code reference and safe checks

Read the exact screen and operation before selecting a repair. This page does not run commands or collect files, keys or logs.

What this value means

Microsoft’s system-code table describes this value as: “The system shutdown cannot be initiated because there are other users logged on to the computer.”

ERROR_SHUTDOWN_USERS_LOGGED_ON is a Win32 system result, usually returned to an application or API caller. It is not a Windows blue-screen code or a diagnosis of the whole PC.

Identity and provenance of 1191
Code1191
Hex form0x4A7
SymbolERROR_SHUTDOWN_USERS_LOGGED_ON
Windows familyWin32 system codes
Source levelMicrosoft code and symbol entry

Safe next steps

  1. For 1191 (ERROR_SHUTDOWN_USERS_LOGGED_ON), identify the application and precise action that returned the value. Win32 system codes can be propagated from a deeper component.
  2. Read the full application message and related logs; use the publisher’s support documentation for that operation.
  3. A number alone does not justify replacing hardware, editing the registry, or reinstalling Windows.

After one step, repeat the original operation and record whether this same code returns. A different code needs a fresh interpretation.

What this code cannot prove

The source establishes the identifier and reference meaning. It does not establish the cause on your specific PC.

If the result differs from the documented message or a repair could remove data, stop and use the official source or vendor support.

Related references

Advertisement

Official reference and verification

Source type: Microsoft code and symbol entry. Checked against the source set on Nov 2, 2026.

Open the source reference ↗

The reference gives the meaning of this identifier. It does not inspect your PC or guarantee that one repair will work.