Oh Boy!

Can't find your post but you got a response by a microsoft engineer who said:

"It's best you don't know what I'm thinking" or something to that.

Did you experience problems soon after that or before?

When you published your e-mail address in the open, like here, anyone having a bone to pick with you can do an attack on your service provider, accounts and do lots of damage. DoS for example. That's only one example. You should do a PM when you share e-mail address like to krymeariver.

Only entrust your e-mail address to those you know and to secure business transactions.

If you have a good full feature antivirus software begin by doing a deep scan. that includes Registry scanning.

The worst senerio is to have to do a complete reinstall an reformat. save your files. There are several other lanes to inspect before you take the destructive choice.

It sounds like you have a windows OS.

After each act of defense always restart your computer because many times changes you make only take place after restart