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How can I enable AHCI mode after Windows Vista install in IDE mode and before/for Windows 7 clean install?

Fresh5 days ago
Mar 15, 202628679 views
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Problem

I just purchased a 2 TB Fantom USB 2.0/eSATA external hard drive. Unfortunately it revealed my oversight when my first custom system was built last summer. I installed Vista Home Premium 64-bit in IDE mode (default in BIOS) instead of the ACHI mode, which would not only provide Native Command Queui…

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Fix for: How can I enable AHCI mode after Windows Vista install in IDE mode and before/for Windows 7 clean install?

Low Risk

Upgrade to Windows 7 first (as it supports newer hardware). Then enable the AHCI driver in the registry before you change the SATA mode of the boot drive. To do this, follow these steps: Exit all Windows-based programs. Click Start, type regedit in …

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