> For the complete documentation index, see [llms.txt](https://docs.payfacto.com/payfacto-knowledge/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://docs.payfacto.com/payfacto-knowledge/veloce-pos/veloce/installation-and-initial-setup/veloce-first-start-and-license-activation.md).

# Veloce First Start and License Activation

Before your Veloce system can be used, the software needs to be activated using an activation key, which consists of a 4 to 6 digits Serial Number and a 16 to 20 digits Usage Key.

{% hint style="info" %}
IMPORTANT! This information is provided with the purchase of a Veloce software license or during the creation of a Veloce reseller account. If you did not receive this information, please contact your sales representative at PayFacto. If you are a PayFacto employee, contact your manager to obtain a license.
{% endhint %}

***

### Veloce Back-Office - First Start

Double-click on the Veloce Back-Office shortcut which was created earlier.

On the first start, the software will update itself and will search for an activation key.

<figure><img src="/files/W4YlLVtN2G2Mbj47E8nG" alt=""><figcaption></figcaption></figure>

UAC prompts may also appear. Be sure to click Yes if you see these messages, otherwise Veloce will be setup as a Keyless Demo.

![UAC - PowerShell](https://documentation.payfacto.com/POS/Veloce/assets/images/Chap02_Veloce_Install/FirstStartandLicense/02-PowerShellprompt.gif)

You will eventually see an INVALID LICENSE! error message. Click OK.

![Invalid License message](https://documentation.payfacto.com/POS/Veloce/assets/images/Chap02_Veloce_Install/FirstStartandLicense/04-INVALIDLICENSE.gif)

Once the login screen appears, it will also mention that your license is expired or invalid. Do not type anything in the Password field. Simply click OK.

![Login with expired license](https://documentation.payfacto.com/POS/Veloce/assets/images/Chap02_Veloce_Install/FirstStartandLicense/03-Logon-ExpiredLicense.gif)

A limited version of the Veloce Back-Office software will be displayed, with only a few basic functions.

![Veloce Back-Office with limited options](https://documentation.payfacto.com/POS/Veloce/assets/images/Chap02_Veloce_Install/FirstStartandLicense/04-VeloceBO-LimitedView.gif)

***

### Veloce License Activation

Click on Setup / Utilities.

![Setup / Utilities Icon](https://documentation.payfacto.com/POS/Veloce/assets/images/Chap02_Veloce_Install/FirstStartandLicense/04a-SetupUtilitiesIcon.gif)

Click on the Tools menu and select the Installed Licenses... option.

![Tools Menu](https://documentation.payfacto.com/POS/Veloce/assets/images/Chap02_Veloce_Install/FirstStartandLicense/05-InstalledLicenses.gif)

Before activation, the window is almost empty.

Type in (or copy/paste) the 16-20 digit Usage Key and click on the Activate button.

![Usage Key Entry](https://documentation.payfacto.com/POS/Veloce/assets/images/Chap02_Veloce_Install/FirstStartandLicense/06-EnterUsagekey.gif)

Once the license activation is completed, the Usage Key field will become grayed out. At the same time, the serial number and the list of installed modules will be populated.

![License Activated](https://documentation.payfacto.com/POS/Veloce/assets/images/Chap02_Veloce_Install/FirstStartandLicense/07-LicenseActivated.gif)

{% hint style="warning" %}
IMPORTANT! Once the license is activated, any further modification or reactivation needs to be carried out using a distributor user account. If you don't have this type of account and require modifications or a reactivation of your license, please contact PayFacto technical support.
{% endhint %}

The Veloce Back-Office software is now activated.

The next step will be to start the Veloce server for the first time and add permissions in the Windows Defender Firewall.