Try uninstalling and reinstalling your Bitdefender VPN product. If the issue persists, try troubleshooting again using the steps you followed earlier....
...Deleting a few hundred "orphaned" keys left behind by uninstalled apps frees up a few kilobytes of space. It provides no measurable boost to CPU speed, RAM availability, or boot times....
I tried to uninstall and install Bitdefender total security as you said above, but again as soon as I checked the agreement box and clicked on install, the installer window just closed....
...the activation code for Family Pack and then reallocate your devices to it by following the steps from this article:
https://www.bitdefender.com/consumer/support/answer/34264/
It's not necessary to uninstall...
Uninstall Bitdefender from your system and then download the latest version from the official Bitdefender website. Install it again and check if the "bad image" error persists....
I uninstalled Bitdefender and reinstalled Webroot, and Coretemp works fine. I really depend on Coretemp and the Coretemp gadget. Bye bye Bitdefender....