Click in the top menu and select Add legacy hardware .
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
Right-click the button and select Command Prompt (Admin) or PowerShell (Admin) . Click in the top menu and select Add legacy hardware
After the restart, press (or 7) to select Disable driver signature enforcement . Step 2: Enable Test Mode Click the menu and select Settings
Type the following command and press Enter: bcdedit /set testsigning on
You must have full administrative rights on the PC.
Before starting the installation, ensure you have the following components ready: