Symptoms of an infected computer

In this article, you will learn how to determine if your computer is infected by a malware.
Below are the common symptoms exhibited by a computer infected by a malware:

Slow computer performance
Opening a file, folder or programs take much longer than usual.

No response from the computer
  • You cannot move your mouse.
  • No response from the keyboard when you are working on a document.
  • The program you are using does not respond anymore.

Computer crashes
  • Your computer crashes and restarts frequently.
  • The computer does not run normally after it restarts.

Slow startup
  • Your computer boots up slower than usual.
  • It takes longer to start using your computer to open programs or files.

Pop-up ads
When browsing the Internet, you encounter annoying pop-ups such as advertisements, driver errors, lottery, games, etc.

Missing files
  • Programs on your computer doesn't work correctly and you receive a pop-up warning like “critical file is missing” or "the program cannot start because ... is missing".
  • Some of the files you created, such as images or documents, are gone.

Extra files
  • Your disk space suddenly doubles or triples in size without you doing anything.
  • Files are duplicated.

Unwanted toolbars
There are toolbars on your web browsers that were not there before.

Website redirection
When you try going to a certain website, you are redirected to a different one.

Unusual Sound Playing in the Background
You hear unusual sounds on your computer, but there are no programs or no applications are opened.

Fake Antivirus
While using your computer, you receive pop-up messages telling you that your computer has been infected and you need to purchase an antivirus application to resolve the issue.

Windows Tools does not open
One or more of the following Windows applications does not open:
  • Task Manager
  • Registry Editor
  • Services
  • System Configuration
  • Other Windows Services/Applications


Applies To: Antivirus for Mac - 2015;Antivirus for Mac - 2016;Antivirus for Mac - 2017;Antivirus+ Security - 2015;Antivirus+ Security - 2016;Antivirus+ Security - 2017;Internet Security - 2015;Internet Security - 2016;Internet Security - 2017;Maximum Security - 2015;Maximum Security - 2016;Maximum Security - 2017;Premium Security - 2015;Premium Security - 2016;Premium Security - 2017;Titanium AntiVirus + - All;Titanium Internet Security - All;Titanium Maximum Security - All;Titanium Premium Security - All;

Last Updated: Jul. 18, 2017 5:17 AM (PST)
Solution ID: 1104650