# Licence Check > [!note] Bu sayfa henüz çevrilmedi ve İngilizce olarak gösteriliyor. The **Licence Check** tab lets you inspect a Rhopoint licence on this PC — to confirm it is valid, see what it covers and when it expires. All processing happens locally. ![](../_images/symmetron-licence-check.png) > [!info] All processing happens on this device. Licence keys are never sent anywhere. ## Load a licence There are several ways to load a licence: 1. **Open Licence** — browse to and open a Rhopoint licence file. 2. **Read clipboard** — read a licence that you have copied to the clipboard. 3. **Scan this PC** — search the PC for installed Rhopoint licences automatically. 4. **Drag and drop** — drag a licence file anywhere into the Symmetron window. > [!info] Symmetron also detects a licence automatically when you copy a licence file or licence text to the clipboard, and switches to this tab for you. ## Read the result When a licence is loaded, Symmetron shows whether it is valid and lists its details. ![](../_images/symmetron-valid-licence.png) If a single licence is loaded it is shown directly; if several are found you can pick one from the list and use **Back to licence list** to return. ## Host ID The input card shows **This PC's Host ID** — the unique hardware identifier of this machine. > [!info] When you request a node-locked licence from Rhopoint, you will be asked for this Host ID. You can copy it from here or from the [System Info](rhopoint-symmetron-system-info.md) tab.