“Installation Failed”, what an unhelpful error message direct from Microsoft. If you’re reading this, you’ve probably been fighting with upgrading a Dell Precision Win7/8 OS to Win10, like a T3600, and it randomly stops around 79%, or reverts on initial reboot.
The T3600 I was attempting to upgrade to Win10 was running Intel C600 Series SAS RAID Controller, Dell branded as a RST F6.
The most common error codes you’ll bump into are:
- 0x80070032 – 0x50015
- 0xC1900101 – 0x20017 – Installation Failed in SAFE_OS phase with an error during BOOT operation.
You can run SetupDiag from Microsoft to diagnose the C:\$Windows\Panther error logs, but none of it relates to the root issue — Windows can’t find a driver for the RAID controller inside the machine.
There are plenty of posts to run DISM or System File Checker…. like the following.
- DISM /Online /Cleanup-Image /CheckHealth
- DISM /Online /Cleanup-Image /ScanHealth
- DISM /Online /Cleanup-Image /RestoreHealth
If you install Win10 v1903, it will fail on a Pre-Finalize Setup and not proceed. If you install an earlier version, like Win10 v1607, it will install, reboot, and revert.
The solution: Disable the RAID Controller in Dell BIOS, and connect your drive to a standard SATA port (reuse the SATA cable going to the DVD drive). Installing Win10 should now proceed just fine. Some days I hate computers….