How to stop Security screens from popping up on my desktop

if sloution 1 fails simply restore windows to an earlier point =D

On Internet Explorer click on tools choose popup blocker make sure the top line says turn on popup blocker then click on popup blocker settings and tighten up the security.
Terry

You can block pop-ups in Internet Explorer and in Chrome. See here

http://www.microsoft.com/security/resources/popup-whatis.aspx
https://support.google.com/chrome/answer/95472?hl=en

Hi,
Before jumping into a conclusion that your computer is infected, please check if you have programs like Strongvault, Wajam installed. They will give you popups.
If not use the following tool from McAfee to scan for suspicious files in the computer.
McAfee Getsusp

Ransomware is an interesting new virus. Says FBI is monitoring you and asks for 200 bucks. Anyways download Microsoft Securoty essentials. Malware bytes doesnt remove all of it yet.

http://www.microsoft.com/security/resources/ransomware-whatis.aspx

by default Norton will block emails and websites containing certain key words. You should be able to go into your settings and turn off pop-ups

Start->Setting->Control Panel->Add/Remove Software
and un-install McAfee software
There should be two or three McAfee related software. After the un-install the software, the popup will be gone!

By the way, it is always safer to have an active Anti Virus protection.

Check to make sure it is still installed. Go to
control panel>install/uninstall and look for it on the list of programs. If it is not there you will have to go back to yahoo and download it and reinstall it. If it is there....does the little screen pop up? What stops you? are you stopped at password? You might check your virus control program under internet security and look for items that are checked to not be allowed such as "messenger services" "chat". If these are barred in your security control you won't be able to use them. Also go to Tools>internet options>content and see of anything is blocked there.
If you can't find anythihng and the messenger shows as installed, the proggy has probably become corrupted in someway.I would uninstall it, go toyahoo and do a clean reinstall, meaning before you download it turn off all running programs including your firewall/security. Be sure to turn them back on after you hae reinstalled. Could someone else who uses the computer have changed your settings?

Download and install Malwarebytes from here:
www.malwarebytes.org
Run Malwarebytes and it should get rid of that pest for you.

This website should help you out. It's really good, try it. It's free. http://www.microsoft.com/athome/security/spyware/software/default.mspx