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Failed Win 8 restores with Rescue CD

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I'm using ATI 2013 build 5551, both installed and for rescue media. My Win 8 was installed to a partitioned drive so does not have the 100MB System Reserved Partition but has always been very stable. However after installing and running AdvancedSystemCare Pro Win 8 failed to boot and all attempts to restore a recent validated image using the CD have ended in failure. Fortunately this is a dual boot machine with isolated installs and I have been able to restore Win 8 by booting to the Win 7 partition and using ATI from there.

So my question is is this build fully Win 8 compatible, and if it is reckoned to be then what might be causing these failures?

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Could you be more specific, exactly what happens when you try to restore your W8, at what point does the restore fail?

When you boot, does the W7 boot manager hand over to the W8 one or the W8 one hand over to the W7 one? You will know as the W8 boot manager will look different to the W7 one.

These are completely isolated, self contained Windows installations. Whichever is booted it cannot see the others, each partition having its own boot files. This is done by hiding partitions in the Grub4DOS boot configuration file. ATI is installed in both Win 7 and in Win 8 and seems to be working perfectly whichever of the systems I boot to - good job too or I would have lost my Win 8 this time had it not been possible to restore an image to the Win 8 partition while running Win 7.

The problem is entirely with the Rescue CD, which boots normally and can see all drives and partitions, including those marked as Hidden. When starting a restoration of the Win 8 partition everything appears to go normally until the progress bar appears, when Restore Failed comes up a few seconds later. However when restoring the Win 7 or XP partitions everything runs normally.

I suspected an alignment problem but the start sector of each OS drive is correctly aligned, i.e. divisible by 4096.

The problem occurred after installing IOBit AdvancedSystemCare Pro in Win 8 and running a full scan with all options selected - not wise as it turns out. However by running each of its scans seperately all seems fine and the problem of Win 8 not booting has not recurred.

However this incident means that ATI may no longer be protecting me from disk failure and if I can't resolve it I would be forced, after ten years of using and totally believing in ATI, to abandon it.

Some progress with this. I d/loaded the rescue CD ISO from the website and successfully restored my Win 8 image. The CD I had been using before was created with ATI when running ATI from Win 7, and that CD will restore my Win 7 images but it will not restore my Win 8 images.

I haven't yet had the time to create a CD with Win 8 and test if it can restore both Win 7 and Win 8 images, but I can confirm that the downloadable version on the site does do so.