What are the signs of infection?

Protect your digital life

Your computer may be infected if:

• It shows unusual notifications or images or plays sounds.
• Applications start or connect to the internet without your consent.
• People from your contact lists receive messages from you that haven’t sent.
• Your mailbox contains many messages with no sender’s address or subject.
• Your computer often stops responding or works slowly.
• The operating system does not load when you start the computer.
• Files and folders may disappear, or you may be unable to open them.
• You get multiple notifications on system errors.
• Your browser stops responding or acts unexpectedly, e.g. opens pages or does not let you close the window or a tab.

What to do if you have notices these signs on your computer

If you notice any of the signs listed above, do the following:

• Update antivirus databases in a Kaspersky application and run a full scan of your computer. 
• If updating is not possible or the application fails to remove a threat, use special disinfection tools. For instructions, see this article. 
• If you have detected adware in your browser, remove it in one of the ways described in this article.
• If you know the type of infection, you can try using a corresponding tool from this list.