Windows Server 2025 RDS Device CAL (50) Activation Guide

Step 1: Install Remote Desktop Licensing Role
- Open Server Manager
- Click Manage → Add Roles and Features
- Select Remote Desktop Services and Remote Desktop Licensing
- Install and restart if required

Step 2: Open Licensing Manager
- Server Manager → Tools → Remote Desktop Licensing Manager

Step 3: Activate License Server
- Right-click server → Activate Server
- Choose Automatic or Web/Telephone
- Complete wizard

Step 4: Install RDS CALs (50 Device)
- Right-click server → Install Licenses
- Select Retail Purchase
- Enter 25-character product key

Step 5: Configure Licensing Mode
- Open gpedit.msc
- Navigate to RDS Licensing settings
- Set mode to Per Device
- Add license server

Step 6: Verify Activation
- Open RD Licensing Diagnoser
- Ensure no errors

Step 7: Restart Services
- Restart Remote Desktop Services or reboot

Notes:
- CALs must match Windows Server version
- Device CAL = 1 device access

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