Virus Scanning as a service

Hello Bernie, 
Thank you for contacting AVG Community Support.
We understand that you wish to know if windows user should be logged in to perform scan using AVG Internet Security. 
I would like to inform that AVG runs in background when the user is logged in to the device. 
So it is important that user should be logged in to perform the scans. 
AVG has following process that runs in background: 
Technical: There are system services that run under your system account. This is necessary for several reasons such as system integration, driver loading, etc. However, some components need to communicate with the user. These components must be running under your account to be able to show you the AVG application.

Security: There are sandboxed processes that run restricted to ensure that they cannot compromise your system, should a security issue occur.

Performance: Certain processes need to run in an immediate manner to be able to protect your system effectively. Some functionality can be starter later, or even on-demand. Therefore, it is split into a separate process, so that it does not slow down the system start.

Also you can refer this article below to understand more details regarding the background process of AVG: | AVG (https://support.avg.com/SupportArticleView?l=en&supportType=home&urlName=avg-antivirus-background-processes)
Thank you and keep us updated.

Hello Bernie, 
Thank you for contacting AVG Community Support.
We understand that you wish to know if windows user should be logged in to perform scan using AVG Internet Security. 
I would like to inform that AVG runs in background when the user is logged in to the device. 
So it is important that user should be logged in to perform the scans. 
AVG has following process that runs in background: 
Technical: There are system services that run under your system account. This is necessary for several reasons such as system integration, driver loading, etc. However, some components need to communicate with the user. These components must be running under your account to be able to show you the AVG application.

Security: There are sandboxed processes that run restricted to ensure that they cannot compromise your system, should a security issue occur.

Performance: Certain processes need to run in an immediate manner to be able to protect your system effectively. Some functionality can be starter later, or even on-demand. Therefore, it is split into a separate process, so that it does not slow down the system start.

Also you can refer this article below to understand more details regarding the background process of AVG: | AVG (https://support.avg.com/SupportArticleView?l=en&supportType=home&urlName=avg-antivirus-background-processes)
Thank you and keep us updated.

Is it possible to have a virus scan execute in the background when no users are logged into a windows computer?
I have a computer running other programs as services and for extended periods of time here are no users logging in, therefore no virus scans.
Thanks in advance.