UPDATE : USE Lets Encrypt https://www.reddit.com/r/ConnectWise/comments/tliscb/https_for_self_hosted_windows_screenconnect/
Download SSL Configuration
Run the below to see the Cert
netsh http show sslcert
Backup the Server!
Run to Delete
netsh http delete sslcert ipport=0.0.0.0:443
Choose Option 5 to Reload Cert with PFX file