Turning off UAC entirely reduces system security. Only do this in isolated test environments.
While enabling elevated privileges fixes the getuidx64 access issues, it is important to understand the risks:
A broken update or corrupted installation of Lenovo System Update prevents the utility from calling the file correctly. getuidx64 require administrator privileges
The quickest fix for end-users is to manually elevate the application executing the function.
Since "getuidx64" is often a small, standalone executable, it can sometimes be a disguised malicious file attempting to gain system access. If you did not intentionally download a utility that uses this file, run a full system scan using Windows Defender Malwarebytes Troubleshooting Persistent Blocks If the error persists even after running as admin: Antivirus Interference: Turning off UAC entirely reduces system security
Any software that needs to install a kernel-mode driver, modify system files (e.g., C:\Windows\System32\drivers\etc\hosts ), or interact with low-level hardware will truly need administrator privileges. The getuidx64 function in these cases acts as a gatekeeper.
: Windows security is preventing the installer from making changes. The quickest fix for end-users is to manually
Unable to run anything that requires 'Administrator' privileges.
Windows restricts access to deep system hardware and core registry hives to protect your computer from malware. Primary Reasons for Elevation
Click , select your user account, and ensure Full Control is checked. Click Apply . Step 3: Update or Reinstall the Associated Software