This manual only applies if you log in to and sign in %%product.onlineofrbusiness%% (KO4B) using anKBC e-Business Card. If you've opted for KBC Sign for Business (the alternative security method), a certificate does not need to be installed.
An KBC e-Business Card that has already been activated can subsequently be installed or re-installed manually via the configuration screen of the KBC-Online for Business security software.
To open the configuration screen, go to the start menu > KBC-Online for Business > Configuration screen (the icon appears below). Users of Windows 10 should go to the start menu > All apps > KBC-Online for Business > Configuration screen.
![certificaat e-Busineskaart1 certificaat e-Busineskaart1](https://wcmassets.kbc.be/content/dam/kbcondernemers/images/Product/betalen-en-betaald-worden/online-bankieren/bankieren-computer/alles-over-online-for-business/herinstallatie-certificaat-ebusinesskaart/1certificaat-e-Businesskaart.jpg/_jcr_content/renditions/cq5dam.web.2000.9999.jpeg.cdn.res/last-modified/1504614255746/cq5dam.web.2000.9999.jpeg)
You then have to tap or click 'Install your certificate' in the configuration screen.
![certificaat e-Businesskaart2 rode kader certificaat e-Businesskaart2 rode kader](https://wcmassets.kbc.be/content/dam/kbcondernemers/images/Product/betalen-en-betaald-worden/online-bankieren/bankieren-computer/alles-over-online-for-business/herinstallatie-certificaat-ebusinesskaart/2(Rode%20kader)certificaat-e-Businesskaart.jpg/_jcr_content/renditions/cq5dam.web.2000.9999.jpeg.cdn.res/last-modified/1504614317479/cq5dam.web.2000.9999.jpeg)
The login screen that opens will then prompt you to insert the KBC e-Business Card.
![certificaat e-Businesskaart3](https://wcmassets.kbc.be/content/dam/kbcondernemers/images/Product/betalen-en-betaald-worden/online-bankieren/bankieren-computer/alles-over-online-for-business/herinstallatie-certificaat-ebusinesskaart/3certificaat-e-Businesskaart.jpg/_jcr_content/renditions/cq5dam.web.2000.9999.jpeg.cdn.res/last-modified/1469007889663/cq5dam.web.2000.9999.jpeg)
The input field turns white after the KBC e-Business Card has been inserted.
![certificaat e-Businesskaart4](https://wcmassets.kbc.be/content/dam/kbcondernemers/images/Product/betalen-en-betaald-worden/online-bankieren/bankieren-computer/alles-over-online-for-business/herinstallatie-certificaat-ebusinesskaart/4certificaat-e-Businesskaart.jpg/_jcr_content/renditions/cq5dam.web.2000.9999.jpeg.cdn.res/last-modified/1469007983515/cq5dam.web.2000.9999.jpeg)
Enter your PIN and tap or click the green tick.
![certificaat e-Businesskaart5](https://wcmassets.kbc.be/content/dam/kbcondernemers/images/Product/betalen-en-betaald-worden/online-bankieren/bankieren-computer/alles-over-online-for-business/herinstallatie-certificaat-ebusinesskaart/5certificaat-e-Businesskaart.jpg/_jcr_content/renditions/cq5dam.web.2000.9999.jpeg.cdn.res/last-modified/1469007983897/cq5dam.web.2000.9999.jpeg)
If you've entered the correct PIN, you will be notified that the certificate has been properly installed. You can now log in to KBC-Online for Business.
![certificaat e-Businesskaart6 certificaat e-Businesskaart6](https://wcmassets.kbc.be/content/dam/kbcondernemers/images/Product/betalen-en-betaald-worden/online-bankieren/bankieren-computer/alles-over-online-for-business/herinstallatie-certificaat-ebusinesskaart/6certificaat-e-Businesskaart.jpg/_jcr_content/renditions/cq5dam.web.2000.9999.jpeg.cdn.res/last-modified/1469007983793/cq5dam.web.2000.9999.jpeg)
If you've entered an incorrect PIN, the input field turns red and you will see a message indicating the number of PIN attempts left. After five unsuccessful attempts to enter your PIN, yourKBC e-Business Card will be blocked and you will have to apply for a new one.
![certificaat e-Businesskaart7 certificaat e-Businesskaart7](https://wcmassets.kbc.be/content/dam/kbcondernemers/images/Product/betalen-en-betaald-worden/online-bankieren/bankieren-computer/alles-over-online-for-business/herinstallatie-certificaat-ebusinesskaart/7certificaat-e-Businesskaart.jpg/_jcr_content/renditions/cq5dam.web.2000.9999.jpeg.cdn.res/last-modified/1469007985980/cq5dam.web.2000.9999.jpeg)