You cannot simply double-click the executable or run it from a standard command prompt.
The term "exclusive" implies that the process may temporarily lock or restrict access to certain system components while it is gathering information. This ensures the data collected is accurate and not modified by another process during the read operation. How to Run getuidx64 with Required Privileges
: This is the crucial aspect. It means the application cannot function properly—or at all—under a standard user account. It needs to run with the highest elevation level to interact directly with the Windows kernel, security accounts manager (SAM), or active security tokens. Why Does getuidx64 Require Elevated Privileges? getuidx64 require administrator privileges exclusive
CloseHandle(hToken); return bResult;
Technically, but on x64 you would need a signed driver, and Microsoft’s signature policies (WHQL, HVCI) would block it unless you are a major vendor. And you would reintroduce the security hole that PatchGuard closes. You cannot simply double-click the executable or run
| Scenario | Recommended Approach | |----------|----------------------| | | Elevate early (via manifest), perform the query, then drop privileges using ImpersonateAnonymousToken or a restricted token. | | Service that needs to identify callers | Don’t call getuid on the service process itself. Use client impersonation ( RpcImpersonateClient , CoImpersonateClient ) – that works at medium integrity. | | Application that just wants a username | Use GetUserNameW – it returns the current filtered username without requiring elevation. | | Cross‑platform code (Linux/macOS/Windows) | Abstract getuid behind a conditional: on Windows, call a broker process that runs elevated. Never call getuid directly from your main UI. |
It may be trying to load a temporary kernel driver. How to Run getuidx64 with Required Privileges :
Because "exclusive administrator privileges" are a powerful security boundary, some malware droppers use this exact phrasing to trick users into granting total system control. Always verify the source of the executable.
While MIC exists on x86 as well, x64 Windows assigns stricter default integrity levels. A medium‑integrity process cannot open a handle to a high‑integrity process with PROCESS_QUERY_LIMITED_INFORMATION if that would reveal the high‑integrity user’s SID. The SeSecurityPrivilege is required, and that privilege is disabled in a filtered admin token.
Press the , type cmd , and right-click on Command Prompt . Select Run as administrator . Copy the file path where getuidx64.exe is located.