You can burn the Avira Rescue System to CD to save viruses that are no longer starting up. With this so-called Live CD or USB stick you can restart your computer and scan for viruses from a CD. For the advanced.
If a Windows PC has failed and is unable to start due to viruses or other malware, Avira Rescue System can help. You download the iso file, burn it to a CD or put it on a USB stick and start your computer from a CD-ROM, so that Avira Rescue System starts up.
Avira Rescue System has a built-in Linux operating system. Once this has been started you can scan your PC for malware with the Avira scanner. Click Avira on the left side of the taskbar and then start the Wizard. You choose the partition to be scanned and click Next. Now the Scan and Repair process starts (which can take a while). Afterwards you will receive a report with the scan results and if all is well the PC has been repaired again.
View an instructional video for Avira Rescue System
You can free download Avira Rescue System 32, 64 bit and safe install the latest trial or new full version for Windows 10 from the official site.