Run the installer on Win 10 where sign pro pdf has not been previously installed. The installation wizard fails with the log file showing:
Error 0x800700e8: Failed to wait for child to connect to pipe. Error 0x800700e8: Failed to connect to elevated child process. Error 0x800700e8: Failed to actually elevate. Error 0x800700e8: Failed to elevate.
The error sometimes occurs due to anti-virus software. Please check if anti-virus is active before running installer. If so, disable before re-testing.
The error has been encountered when running Avast Antivirus.
When the antivirus is disabled the installer works as expected.