WindowsUnblocker From Kaspersky: Free Automated Virus and Malware Cleaner
“…Kaspersky WindowsUnblocker is a free tool that can be used to boot an otherwise unbootable computer and start the process of cleansing the registry of unwanted entries that have been added by malware. The software is supplied as an ISO image that can be burned to CD or DVD, or used to create a bootable USB drive – you then simply need to ensure that your computer is configure to boot from that drive and you’re ready to start cleaning up your system…”
“…Unlike other security and malware removal tools, Kaspersky WindowsUnblocker does not have an attractive user interface or an abundance of options. It is essentially an automated tool that will scan your registry for unwanted entries and disinfect any malicious sections. The Linux-based environment is not going to be to everyone’s taste, but this is a tool that is here to do a job rather than look pretty.
Coming from Kaspersky, this is an interesting tool designed with a very specific purpose in mind. It is slightly disconcerting that there are no options to configure and you are kept largely in the dark about what is going on, but this utility could get your non-functioning computer back up and running. This is the sort of utility you hope that you will never have to use, but it is something you should have ready in your software arsenal so you are prepared in advance…”