# How to Update the PFX Key for UWP Signing This guide explains how to generate and update the PFX (Personal Information Exchange) certificate used to sign the PPSSPP UWP app. --- ## Prerequisites - **Visual Studio** installed with UWP development workload - Access to the project solution file --- ## Step 1: Open the Package Manifest 1. In Visual Studio, open the PPSSPP UWP solution 2. In **Solution Explorer**, navigate to the `UWP` project 3. Double-click on `Package.appxmanifest` or `PackageGold.appxmanifest` to open the manifest viewer --- ## Step 2: Go to the Packaging Tab 1. Click on the **Packaging** tab in the manifest viewer 2. You'll see the current certificate information displayed here --- ## Step 3: Choose a Certificate 1. Click the **Choose Certificate...** button 2. A dialog will appear with several options: - **Create...** - Create a new self-signed test certificate - **Select from Store...** - Choose an existing certificate from Windows Certificate Store - **Select from File...** - Browse for an existing .pfx file --- ## Step 4a: Create a New Test Certificate If creating a new self-signed certificate: 1. Click **Create...** 2. Enter a **Publisher Common Name** (e.g., `CN=YourName`) 3. Optionally set a password 4. Click **OK** --- ## Step 4b: Select an Existing Certificate If using an existing .pfx file: 1. Click **Select from File...** 2. Go to your `.pfx` file location 3. Enter the certificate password if prompted 4. Click **OK** ---