If you're using the Windows supplied backup program, it's buggy and should be avoided. I use Easeus Todo Backup Free which is free for home use and works well. There are many others as well.
Hi! I'm hoping someone can help me with this problem... I've been trying to backup my computer to an external drive and I keep getting the error code: 0x8078002A. I've tried numerous times in the past few weeks with no success and the same error code each time.
My laptop is a Dell XPS 17 (L702X, Early 2011) with an Intel(R) Core(TM) i7-2760QM CPU @ 2.40GHz processor with 8.00 GB of installed memory (RAM). The Windows edition I'm running is Windows 7 Professional. The size of the backup that I'm trying to run is 327.56 GB (and I know there is plenty of space on the external drive to accommodate the backup).
The external drive I'm trying to back up the laptop to is a WD (Western Digital) My Book external hard drive that is a 4 TB hard drive. It currently has 1.88 TB free of 3.63 TB according to its properties. I recently performed an "Error-Checking" run with the external hard drive (by clicking on 'Properties' and then the tab that said 'Tools' and then 'Error Checking' and it went through that process and fixed whatever errors it might have found. I had read on some other forum that I should try doing this to see if that would make the backup work, but it still won't work and I'm still getting the same error code.
If anyone has any suggestions or ideas that may help me resolve this problem I would be so appreciative. Thank you!

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