‘Autoplay’ in Windows was originally designed to automatically open removable media that you have plugged into your computer, such as CD/DVD or USB media – it was meant to speed things up for you, but it has had a checkered history.
In the old days, putting in a CD/DVD or USB media with Autoplay switched on was a good way of passing viruses from one computer to another, as viruses were automatically executed when the media was opened for you. This is why good security programs today either automatically scan removable media when inserted, or ask you to allow it to do so, but some programs are better than others and some may not stop a virus from executing itself in time.
Later versions of Windows switched Autoplay off by default and Windows 10 asks you what you want to do, when removable media is inserted. However we do see customers that switch it back on, for ease of use but this does pose a risk.
Even today, it is recommended that Autoplay is switched off. You can do this by going to Settings > Devices and select ‘Autoplay’ on the list on the left. Toggle the Autoplay switch to ‘Off’, Autoplay will be disabled and you will not see the pop-up window again. This allows you or your security software to scan the removable media before opening.
Alternatively, or you just find that annoying, the next safest thing is set Autoplay to ask you what to do every time media is inserted, rather than automatically opening it. In Windows 10 you can actually select different actions for different media, for example you can set memory cards to import photos from your camera (which is unlikely to be infected). The settings for this are in the same section as described above, and you go to the ‘Choose a default’ for each media showing in the list.
There is also even greater control of individual media by going to the ‘Autoplay’ setting in Control Panel, where you can choose a default for many more options such as Pictures, Video, Audio etc. that may be present on your removable media.
Rather than just automatically opening media, the final thing that you can do is to set Autoplay to open the media in File Explorer – but as some viruses reside in an area of removable media that is read when opening its file list, this is not that much better than automatic opening. We would recommend scanning all removable media before opening it in File Explorer.
Every day people are using the same USB drive in their home and office/business computers, or putting removable media into their computers that has been used in a friend or relative’s system. This means that the weakest point is the danger point for compromising the security of your computer – so the friend/relative that may not have a good security program, or a compromised office computer are routes to computer infection.
The last thing you want is to have your computer disinfected, so it pays to reduce the risk where possible.
If you would like help in securing your computer or believe that your computer may be infected, give us a call on 01455 209505.