Flexi 8.1 usually requires a physical USB sentinel key to function. Ensure it is not plugged in until the software prompts you or the installation is finished.
However, installing FlexiSIGN Pro 8.1 v1 on a modern Windows 10 or Windows 11 machine is notoriously finicky. The phrase is often searched in frustration by users facing DLL errors, dongle driver failures, or installation loops.
*Muhurat Trading will be conducted on Tuesday, October 21, 2025. Timings of Muhurat Trading shall be
notified subsequently.