Right-click the button and select Command Prompt (Admin) or PowerShell (Admin) .
Modern Windows versions will block Multikey because it lacks a digital signature from Microsoft. You must temporarily disable this security feature. Click the menu and select Settings . Go to Update & Security > Recovery . Under Advanced startup , click Restart now . Once the PC reboots to the blue menu, navigate to: multikey 181 x64 install
Once the system is prepared, follow these steps to manually install the driver: Right-click the button and select Command Prompt (Admin)
Type the following command and press Enter: bcdedit /set testsigning on and multikey.cat files.
Ensure you have the multikey.sys , multikey.inf , and multikey.cat files.