AVG will scan your computer automatically every day - a notification will flash up in the bottom right corner to indicate a scan is taking place and again when it has been completed

 

But if you think you may be infected and wish to do a manual scan, then from the main AVG interface click the Run Smart Scan button

 

 

AVG will firstly scan the computer for browser threats and then after you click Next it will scan the whole computer for viruses & other malware

 

The progress of the scan will be shown as below, and from this screen you can also Stop the scan if required

 

 

 

Once the scan is completed you will see the summary screen below which will tell you if any threats were found and if so what action was taken, you can click on Done to continue

 

 

If any problems are found then you will see a screen similar to below listing the infected items found, if so click Select All and then Resolve All

 

 

The selected threats will then be removed and you will see the confirmation screen below - click Done

 

 

 

You can also click the Scan options button (as shown circled in red below), where you can then choose to scan specific files or folders, run an intensive deep scan, scan an USB or DVD drive, make changes to the scheduled scan settings, and view your scan history

 

N.B. I don't recommend the Performance Scan option as this will try and sell you an additional product called AVG TuneUp which in my opinion causes more problems than it fixes!