| Aspect | Rating | Notes | |--------|--------|-------| | | ⭐⭐⭐⭐☆ | Critical for troubleshooting & recovery | | Safety for manual editing | ⭐☆☆☆☆ | Dangerous except for LicensingMode / LicenseServers | | Documentation clarity | ⭐⭐☆☆☆ | Microsoft docs are sparse on per-user CAL registry details | | Recommended approach | Avoid direct edits | Use Server Manager or Group Policy |
⚠️ Always back up your registry before diving in. Deleting the wrong subkey in Terminal Server can lead to a full OS reinstallation. rds cal license registry key
Per User CALs are not auto-applied — they require tracking in AD or manual installation. Registry only stores the mode preference. Fix: Ensure Per User CALs are actually installed on the license server (RD Licensing Manager → Install Licenses). | Aspect | Rating | Notes | |--------|--------|-------|