When you do find a solution you find they uninstalled that second firewall or Mcafee, Norton or such.
I don't expect you to find an answer here given just the details so far.
On a daily basis, my computer slows to a crawl. Control Atl delete yields,after a long black screen, failure - security options
failed to create the security options dialogue.Have run complete checkdisk and hard drive tests and everything comes up okay.There is nothing coming up in any logs or events shown in event viewer.I see postings of this problem all over the internet but no solutions.
Light bulbs you shouldn't buy
There are plenty of dimmable LED light bulbs, but make sure you don't buy the ones that flicker when you dial them down.