Fix V-Ray Benchmark not starting

This guide provides information on how to troubleshoot and resolve the following V-Ray Benchmark issues:

• V-Ray Benchmark doesn't launch
• V-Ray Benchmark disappears immediately after showing the welcome screen 
• V-Ray Benchmark: FatalError "Couldn't get frequency" message in the log file.

Solutions

• Reloading the Windows performance counters

  If you experience any of the above-mentioned startup issues under Windows OS (GUI or CLI), it might be due to invalid performance counters of Windows OS. 

  They can be reloaded by running the CMD as administrator and executing the following commands:

  lodctr /r %windir%\SysWOW64\lodctr /r

  Learn more about Windows performance counters.

   

• Deleting VRayBenchmark's temp folder

  An alternative solution is to delete the temporary folder. This method clears any corrupt or conflicting temporary files that may be causing errors.

  Follow these steps:

  1. Close V-Ray Benchmark if it's running.
  2. Open the Windows temporary folder by entering %TEMP% in File Explorer’s address bar.

  3. Delete the V-Ray Benchmark folder (path: %TEMP%\V-Ray Benchmark).