FYI SpinRite's Development Roadmap

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The only Brit in the Village
Sep 23, 2020
Last few times I have tried to use Spinrite 6 I have run into the "Invalid Partition for Drive Size" error message, I hope 6.1 is released soon.



New member
Oct 7, 2020

I ran across this on a >1TB drive formatted by Windows 10. I stuck the drive in a Linux machine and backed up the boot sector/partition table with dd bs=512 count=1 if=/dev/sdb of=/root/BigDriveSector0.bin (Your options to dd might need to change.)
I then zeroed the boot sector (again with dd), popped the drive back into my Windows system and booted spinrite without complaints on the "empty" drive. After it was done, I restored the boot sector and all was well again. If you feel comfortable with dd, you might have similar results.


Sep 17, 2020
I hope 6.1 is released soon.
As do we all. :)

Steve is apparently doing a total re-code for SpinRite 6.1. Per his comments in the development NG, this re-coding must either be done now, or later when transitioning to SR 7.0 (UEFI boot).

Per Steve, doing it now will produce a much better SR 6.1 product while saving beau coup time when transitioning to SR 7.0 after SR 6.1 is released.

And so we wait . . .
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