Do you have the name or the source where you downloaded this file so I can provide more exact installation commands?
Enter the system settings (often by pressing F2 or Delete during startup) to verify that the version number matches the new "830_2_RP" update. 830_2_RP.rar
Run the .exe file as an Administrator. Follow the on-screen prompts and do not restart the computer until the utility confirms the process is 100% complete. Do you have the name or the source
Compressed files from unverified sources can contain malware. Always run a scan with Microsoft Defender or Malwarebytes on the extracted folder before running any executable files. 830_2_RP.rar
Once extracted, you will typically find one or more of the following: