I have a desktop PC (Intel quad-core I5) running MS 7 Professional 64-bit. It runs perhaps 20 programs perfectly. No issues.
I would prefer to use the Windows provided disk image and backup program to save images and files to my external 1TB HD. I've never had any luck -- even after formatting the external HD. The image backup almost completes and then tells me that the backup FAILED and the error message says that the backup medium (the HD that works perfectly) was "not ready." The error message includes 0x80070015.
I know that this is a TYPICAL problem with Windows 7 Professional -- and likely other MS operating systems.
What is the simple fix -- if any?
I've read several rather complex "fixes" to this problem. It's interesting that MS has not corrected this obvious bug.
PS: I use SyncToy 2.1 (64-bit), an MS program, to backup files to my internal HD and my external HD. That elegant program works perfectly -- but it will not create a HD image.