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Warning in a test result

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The AVG test may report warning - potentially dangerous object for some files, which may be infected or pose a potentional threat. Typical examples of objects that are detected include hidden files, cookies, suspicious registry keys, and password-protected documents or archives.

You can find more information about files reported as Information in FAQ 2242.

A Warning refers to a file that cannot be scanned (for example a password-protected archive), or to potentially suspicious files (for example hidden files or cookies). These files do not pose a direct threat to your computer or security. Information about these files is useful in case adware or spyware is detected on your computer. If an AVG test only detects Warnings, no action is necessary.

Here is a brief description of the most common examples of such objects:

  • Hidden files
    Hidden files are by default not visible in Windows, and some viruses or other threats may try to avoid detection by storing files with this attribute. If AVG reports a hidden file which you suspect to be malicious, you can move it to the AVG Virus Vault and send it to us for analysis.
  • Cookies
    Cookies are plain-text files which are used by websites to store user-specific information, which is later used for loading custom website layouts, pre-filling usernames and other purposes. More information is available in this FAQ on tracking cookie files.
  • Suspicious registry keys
    Some malware stores information in the Windows registry in order to ensure that it is loaded on startup or to have a greater impact on the operating system.

You can adjust the test settings so that AVG only reports the warnings you are interested in:

  1. Open the AVG Program.
  2. On the left side of the screen, click Scan options.
  3. Select a scan, and then click the blue Change scan settings text.
    • You can also change these settings by opening the Tools menu, and then clicking Advanced settings.

More information about files detected by AVG is available in this FAQ on viruses.


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