: Try running the executable in compatibility mode. Right-click on the file, select Properties, then go to the Compatibility tab and check "Run this program in compatibility mode for:" and select an earlier version of Windows.
The installer may lack the administrative rights required to launch background executables or write files to protected system directories. How to Fix "Failed to start cls-srep x86.exe" failed to start cls-srep x86.exe
Knowing this can help determine if the issue is with the installer itself or a system resource limitation. : Try running the executable in compatibility mode
Use (from Microsoft Sysinternals) to search for cls-srep and see what parent process owns it. failed to start cls-srep x86.exe
Get-AuthenticodeSignature -FilePath "C:\full\path\to\cls-srep-x86.exe"
Sometimes, the installer simply lacks the permissions to launch a subprocess like cls-srep x86.exe .