07-26-2011 12:54 PM - last edited on 03-13-2012 09:24 AM by AlanM
Most legacy systems built before 2011 have a traditional PC BIOS.
For help with overcoming this please check out this nifty KB article we have for you:
01-17-2012 07:42 AM
I purchased a SeaGate Desk 3TB USB external Harddrive to provide back up for my Windows 7 files. I have tried both various SeaGate backup SW as well as the Windows 7 back up routine. I have spent days trying to find a successful resolution to the infamous 0x8078002A and associated 0x80070045D error messages. I have tried just about every fix I could find on the internet and various forums to no avail. I finally came upon one discussion that appears (I repeat - appears) to identify the root cause of the problem.
When using Windows 7 Backup and Restore with a 2.5 TB or 3.0 TB drive, the backup fails with an error code of (0x8078002A).
This problem is caused by an issue with the Windows 7 Backup and Restore utility when using drives with 4K Logical sector sizes, which are found on WD 2.5 TB and larger external drives. This is different from an "Advanced Format" (AFD) drive which use 4K physical sector sizes. AFD drives should not cause this problem.
IF I understood the "solution" correctly - it appears I would need to re-partition the SeaGate drive so that the logical sector size matches the current windows 7 default.
I received a response from SEAGATE Support which solved the problem. They provided detailed steps on bascially how to erase and repartition the 3TB external hard drive with GPT format. Once that was done the GoFlex Desk 3TB drive backed up my system with both an image as well as file copies. I was able to use the Windows 7 Backup system - desired because it also created a disc Image of my system.
All the other "fixes" I tried produced no results - this worked!!!!!
02-08-2012 05:44 AM
I tried the GPT fix and indeed got a formatted drive. But the windows backup errored and the Seagate provided backup didn't recognize the drive at all.
I'm using the 3 TB drive with a Dell XPS 15 64-bit Windows 7 system.
04-11-2012 01:23 PM
This is what I received form Tech support:
Thank you for contacting Seagate Technical Support.
I am sorry you are having a problem with your Seagate drive. Let me help you resolve this issue. I understand when you try to use Windows backup and restore and are receiving the error 0x8078002A.
Hard disks with 4k sector size are not supported by Windows image Backup. It supports 512 sector sized disks. To use high capacity disks you can use 512e (512 emulated) disks instead. Here the physical sector size is 4k but the logical sector size reported to Windows is 512. There are performance impacts though in the conversion between 512 to 4k.
To solve this issue, please download our software disc wizard from the following link and use it to reformat the drive:
Support for Disk Drives Beyond 2.2 TeraBytes (TB) and 4K Advanced Format Sectors
If you have any additional questions you may reply back to this email or call us at 800-732-4283 Monday through Friday 8am - 11:30am CT ; 1pm - 6pm (CST). For your convenience we also have online chat assistance.
04-22-2012 12:57 PM
Good try still does not get rid of the error.
Can create an image using acronis but cant back up using windows7.
My laptop DELL xps brand new bios everything up to date.
There should be a warning on the box about this hard drive. Wasted hours on this.
Ant more great ideas.
Thanks for your post but it does not work.
04-25-2012 12:47 PM
I'm having the same issues. I can't believe there isn't some way to make this work. The tech support I got from Seagate was aweful. They just said "Formatting it 512kb does not work becuase physically the drive is not compatible with Windows Backup due to Microsoft not keeping their software up to date with current technology." If they know it's not compatible, then why make the physical sector size of 4096kb on almost all of their drives. It is only needed on drives over 2.2 TB. I guess they aren't interested in selling hard drives anymore.
Microsoft says that 4kb discs formatted with a logical sector size of 512bytes using emulation is supported by the following operating systems:
Windows 7 with MS KB 982018
Windows 7 SP1
Windows Server 2008 R2 with MS KB 982018
Windows Server 2008 R2 SP
So if seagate bothered to allow the use of 512 byte emulation, then they should work fine. If they do allow it, they sure don't want to let anyone know about it because I can't find documentation anywhere.