WAMP was green until I altered 'root' password - it's now orange (no replies)

I installed the latest version of WAMP and it started OK - all 3 services running and a green icon for WAMP.

I changed the password for root using 'Command Prompt' and running MySQL command to do so. I checked that I could re-connect to MySQL with the new password - no problem.

How do I know which of the 3 services is not running please? Also, what must be done to sort it out?