Will not back up - Invalid Byte Code

WD External and Portable SSD External SSD for Windows
1

I’ve seen others post this issue and no resolution.

Yes, I have reinstalled the backup software multiple times.

1366×768 586 KB

2

Try WD SmartWare as opposed to WD Backup:

http://support.wdc.com/knowledgebase/answer.aspx?ID=9621