I need help with this thing keeps popping up and I cant even run msconfig

I have this "security tool" that popped up on my computer..It looked like a windows thing so I downloaded the thing, but then it wanted me to pay to open it. I can't get it to go away. I tried to do the msconfig to see if I could stop it from running at startup, I've restarted my computer a million times. I removed the avg I had because it said it wasn't working, now I can't download another one. i can't do anything, that security tool pops up saying everything I try to open is infected with lsas.blaster.keylogger and it's trying to send my credit card info..even as I type this email the security tool has popped up 10 times. I tried to download hijackthis and another one I saw on here called malwarebytes..I can download it but when I try to run anything the security thing comes up. Can anyone help me? It's even taken away my picture on my desktop and all my icons, so when I do try to open anything it closes it for me. How nice!

Hello! We need to do some diagnostics to get started.

1. Please download Profiles by noahdfear.

• Save it to your desktop.
• Double-click profiles.exe and post its log when you reply

2. Download Win32kDiag by ad13 and save it to your Desktop.

• Double-click Win32kDiag.exe to run Win32kDiag and let it finish.
  
• When it states "Finished! Press any key to exit...", press any key on your keyboard to close the program.
  
• Double-click on the Win32kDiag.txt file that is located on your Desktop and post the entire contents of that log as a reply to this topic.

3. Please download Cheetah-Anti-Rogue by me, and save to your Desktop.

• Double-click on Cheetah-Anti-Rogue.zip, and extract the file to your Desktop.
  
• Double-click on Cheetah-Anti-Rogue.cmd to start.
  
• It will finish quickly and launch a log.
  
• Post the contents of it in your next reply.

4. In your next reply, please post the following logs for my review:

• Profiles log (1)
  
• Win32kDiag log (2)
  
• Cheetah log (3)

Thanks!