Hi,
Yes, please delete them manually if you are able to. They won't harm you from there unless you restore them. I am surprised that they are still present after emptying the quarantine folder.
Since you have no further malware issues, you're all set to go. The logs are clean.
- Click Start then Run
- Now type Combofix /u in the runbox and click OK. Notice the space between the Combofix and the /
This will uninstall ComboFix. It will also implement some cleanup procedures and reset System Restore to prevent reinfection from old restore points.
Please respond to this thread one more time so we can mark this thread as resolved.
Stay safe and think
Prevention