Parashara's Light 9.0 can sometimes be activated via internet registration instead of a physical key.
Unplug the dongle and try a different USB port, preferably one directly on the computer rather than a USB hub. Verify Indicator Light: parashara light 90 hardware key not found best
Attempt the following solutions in order. Do not skip any step. Parashara's Light 9
Windows may shut down USB ports to save power, causing the "key not found" error during active use. Go to > Universal Serial Bus controllers . parashara light 90 hardware key not found best
Here is a quick troubleshooting guide to get you back up and running. 1. The "Quick Fix" Checklist