Disinfecting your Windows PC using A-squared Free Command Line Scanner

If you are worried that your Windows PC is infected with variety of viruses/worms then good news is that almost all antivirus companies offer limited edition of their popular antivirus products, so that users may not only get rid off malicious code but also have an idea of how premium versions of their products work.

One such free antivirus product is a-squared Command Line Scanner aka a2usb from Emsi Software GmbH. It detects and removes trojans, worms, viruses, dialers, spyware/adware, tracking cookies and spyware traces in the registry and on the hard disk

It’s is always a good idea to turn off System Restore feature in Windows, before starting scanning with any antivirus product, because it eliminates possibility of reverting to infected system state at any point of time in the future. For this right click on My Computer on desktop and click on Properties.

Click on System Restore tab and Turn off System Restore on all drives

Click on Apply and OK button.  Now download a-squared Command Line Scanner, save it on your Windows desktop, and unzip to a2usb folder.

Run a2free tool. It asks whether you want to update the tool. As you have just downloaded it from the EMSI site, it is up-to-date. So click on No button.

Following is the main window of a2usb.

Click on Configuration button in left pane to open tabbed window to change a2usb configuration. Changes for general, update, logging, and permissions related settings can be made by clicking each tab shown in the following windows.

Once you have properly configured a2usb, click on Scan PC button in left pane, click on Deep Scan radio button then click on SCAN button.

After scanning is finished, check on all suspected registry traces and files then click on Delete selected objects.

Close the program and restart your PC in normal mode.