'Microsoft Corporation Has Blocked Your PC' Pop-Ups

The 'Microsoft Corporation Has Blocked Your PC' pop-up messages that claim to come from Microsoft should not be trusted. If you are having trouble closing the 'Microsoft Corporation Has Blocked Your PC' message boxes, that means the page that loaded the pop-up window has a pop-up loop enabled. Computer security analysts alert that the 'Microsoft Corporation Has Blocked Your PC' messages are a tactic that relies on specially crafted pages to scare users into thinking that their machines are compromised and calling the toll-free 866-216-1642 phone line is the best thing to do. However, the staff at Microsoft Corp. is not responsible for managing the 866-216-1642 phone line. The phone numbers listed on the 'Microsoft Corporation Has Blocked Your PC' pop-up windows offer misleading information and should not be interpreted as signs of a security compromise. The 'Error # 268D3' report presented on the 'Microsoft Corporation Has Blocked Your PC' windows is associated with many untrusted pages and technical support tactics. The 'Microsoft Corporation Has Blocked Your PC' pop-ups may be displayed on a background that says:

'WARNING! CALL HELPDESK 1-866-216-1642 Immediately!
Windows has detected Trojans, viruses, and spyware on your system.
We will now perform a quick scan to determine the state any and all threats.
[PROGRESSBAR BEING LOADED]'

The foreground is likely to offer the following warning to users:

'Microsoft Corporation HAS BLOCKED YOUR PC
Error #268D3
Please, call Microsoft immediately at: 1-866-216-1642
Do not ignore this critical alert.
If you close this page, your computer access will be disabled to prevent further damage to our network.
Your computer has alerted us that it has been infected with a virus and spyware. The following information is being stolen...
Facebook Password
Banking Details
Microsoft Corporation Account Password
Photos stored on this PC
You must contact us immediately so that our engineers can walk you through the removal process over the phone. Please call us in the next 5 minutes to prevent your computer from being disabled.
Microsoft Toll-Free 1-866-216-1642'

The 'Microsoft Corporation Has Blocked Your PC' alerts may trigger the download of a remote desktop client, which you should cancel. The 866-216-1642 phone line is managed by con artists who may exploit legitimate remote desktop tools like TeamViewer, LogMeIn, and Support.me to access your system, cause problems, and offer a solution that is priced at a few hundred dollars. PC security experts note that you can close the 'Microsoft Corporation Has Blocked Your PC' pop-ups by choosing the 'Prevent this page from loading messages' option and terminating the browser's process in situations where the 'Prevent this page from loading messages' option is not visible. The 'Microsoft Corporation Has Blocked Your PC' warnings do not pose a threat, and users who call 866-216-1642 might be suggested that their systems have been infected with spyware. Invest your trust into a reputable anti-malware shield as opposed to calling a toll-free phone line promoted on your screen while your Web browsers do not appear to be responsive.