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Exit SANBOOT hangs on latest Windows 10 build 1703 - Printable Version

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Exit SANBOOT hangs on latest Windows 10 build 1703 - SebastianRoth - 2017-08-10 23:40

We're seeing an issue with the exit to hard drive on Windows 10 build 1703. We recently updated to Windows 10 1703 in a lab, which were configured to boot to PXE by default. After the update, the computers sat at “Boot to SAN 0x80”. This wasn’t post-deploy. I could re-deploy a Win 10 1604 image and it would continue to boot just fine.

Also took one of our test computers and created a fresh build with 1703 without going through the upgrade - same issue. After some troubleshooting we found that changing the exit type from SANBOOT to GRUB_FIRST_HDD seems to work.

Anyone an idea? Which debug flags might help us shed a light on this?