Right click context menu "Scan with Comodo Antivirus" not working

Running Windows Vista 64 bit with 4gb ram on 6year old HP laptop. (yes i know its old but still works for me)
Installed new version of of CIS ver. 7.0.317799.4142
Right click context menu is not working though it is shown. I proceeded to read up in Comodo help forums see what i could find on this issue.
Found some fixes relating to ver. 6 and tried them out to no avail and even did a “Clean Install” as posted in the forums, still no luck.
Any help would be appreciated, thank you.

same problem, I also did reinstalled. I finally went to clamwin