As shown in the attached picture, can anyone give me a hint why my Tor.exe talk to the host of Adobe? while I am not using Tor to access or use any Adobe services. does my PC get hacked or injected by virus?
Note that you should provide the IP address, not a hostname (the thing in the "address" field is a hostname) from your connection tracking tool. Resolving the hostname leaks where you're connecting and makes debugging pretty hard, because we don't know if there is an issue with your DNS being broken or something else. As to your question, activate.adobe.com seems to be offline currently and not running a Tor relay, so there's no reason for it to connect there. I think it's unlikely you have a virus that would be causing this issue.
... and as discovered in the comments, Tor never connected to activate.adobe.com.