Knowing the symptoms of a malware-infected computer allows you to make the necessary actions on how to remove and prevent it.
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 don'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 applications open.
Random Audio Advertisements
There are instances where you may encounter unusual behavior in your computer, such as random audio advertisements.
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 don't open
One or more of the following Windows applications don't open:
- Task Manager
- Registry Editor
- Services
- System Configuration
- Other Windows Services/Applications