Since you posted in the Windows Defender Offline (WDO) forum, I assume you’re trying to use WDO.
Be advised WDO for lack of a better word is “broke.”
I’m not employed by MS and do not know when a new version will be available.
Free independent malware scanners that are quite good include the Emsisoft Emergency Kit, Eset Online Scanner, Kaspersky Virus Removal Tool and Malwarebytes Free
ESET Online Scanner: http://go.eset.com/us/online-scanner
http://go.eset.com/us/online-scanner
Kaspersky Virus Removal Tool: http://www.kaspersky.com/antivirus-removal-tool?form=1
https://www.malwarebytes.org/free/
If you specifically need an offline scanner/rescue disk see the following:
http://support.kaspersky.com/us/viruses/rescuedisk
http://www.bitdefender.com/support/How-to-create-a-BitDefender-Rescue-CD-627.html
http://www.freedrweb.com/livecd/?lng=en
Regards…