Try initially to download and run the MVT program. It might see something wrong.
If it says files are missing and cannot fix post a picture of the warning and the file list of missing files. ( if there are 2 in teh amcore folder this might be a bug in MVt (just warning you)
Second possibility is
Open IE – click on reset in Internet tools advanced and close IE
Click on M shield icon and check for updates
Try to run a scan
Though I would think from past experience that a clean uninstall reinstall would fix this.
reboot and run
and reinstall from your account