Total Security: C:\ProgramData\Bitdefender\desktop\EnginesTemp folder filled with 617Gb of temp files/folders.  This filling 1000gb hard drive and making PC unusable until space cleared. . Unable to delete contents. How do I remove and how to prevent? Win 10 Pro.  This is happening on other PC's but do lesser extent.  Still those are approaching 50gb of temp files.  
On the first PC I had to uninstall and reinstall Bitdefender to clear those files.  This bug needs to be fixed.