[Window Title] Microsoft Malware Protection Command Line Utility [Main Instruction]

[Xerious]

My computer is losing focus more than once every 3 seconds (as a slow typist the last sentence took 2 minutes to type due to flickering windows)
The following appeared when I pressed CTRL + C then pasted in a document.

[Window Title]
Microsoft Malware Protection Command Line Utility

[Main Instruction]
Microsoft Malware Protection Command Line Utility has stopped working

[Content]
Windows is checking for a solution to the problem...

[Cancel]

This has gotten unbearable...