Antivirus rescue disks are a great tool to keep in your bag in the event that your normal antivirus program isn’t running because of malware. These USB drives that boot and CDs let you scan your computer for infections and repair registry issues, as well as scan startup entries. Depending on your needs, you can choose from a range of scanning options, such as an instant scan or a complete system scan. Some also include additional features, such as the ability to restore deleted files. To help you select the best one for you, we’ve rounded up our top picks for the best antivirus rescue disks.

Kaspersky Rescue Disk

Kaspersky’s Rescue Disk is powerful tool that offers many options for customization. You can select which folders or files to scan. It can also search for different types of malware, such as Trojans, viruses, worms and more. The drawback is that it’s quite an enormous download, however its ability to perform deep scans means it’s likely to find problems that other programs can’t.

Bitdefender Rescue Disk

If you have an Bitdefender product installed on your PC This rescue disk will allow you to run the antivirus in a non-Windows environment. It’s user-friendly and, even though it does not have an interface that is graphic it is still possible to navigate through the plain text menu using the arrow keys. It’s one of the cheapest on this list.