Security vendor AVG has launched a free emergency boot-up CD.
The AVG Rescue CD will recover and boot PCs that are infected with a virus or unable to boot for another reason.
Any AVG customer, including those that use its free security software, can download a software package from its website, which can then either be burnt to CD or stored on a USB flash drive.
If needed the disk or USB drive can then be inserted into the machine and will boot the PC.
Once booted, the software will scan the hard drive for viruses and malware, as well as restoring a safe network connection to the computer.
Advanced users will also be able to make use of a Windows Registry editor, a TestDisk utility for recovering deleted files and lost partitions, a file browser for navigating folders and a Ping tool for basic network diagnostics, all of which also feature in the free software.
AVG is also offering a version of the Rescue CD for Linux-based PCs.
To download the software, visit AVG's dedicated webpage.