I ran into an issue recently while trying to secure wipe a Dell OptiPlex 755 with my favorite data destruction software, Active@ KillDisk. I was using their bootable DOS CD. The first two PCs I was wiping were Dell OptiPlex 745’s and these wiped without a hitch. Then, when I tried to wipe my Dell OptiPlex 755 I kept getting this error during the initial boot.
I tried burning new CDs and DVDs. Even tried the bootable USB stick. Nothing worked. Same error every time. I tried it on another OptiPlex 755 and bang; same issue. I then decided to browse around the BIOS and a thought came to me to try and switch the SATA Operation Mode to “Legacy”. I did this, saved the BIOS and rebooted.
KillDisk booted error free and allowed me to wipe the drive.
You may not have an OptiPlex 755, but the rule here is to check the SATA operation mode. Whatever your options are, put it in the mode that sound as basic and legacy as you can get. If it’s in a RAID mode, take it out. Hope this helps and happy data wiping!