P8Z77-V LX2
Win7 Pro
Disk 0 SanDisk SSDP256G
Disk 1 WD2500AAKX
Sequence of events:
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Removed healthy WD2500AAKX (secondary) to upgrade to new WD10EZEX (secondary)
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Connected to SATA 6Gb port
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Booted, entered Bios showed DVD, SSD and WD10EZEX. Checked boot sequence ok. Confirmed Sata Mode=AHCI
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Windows starts up and notifies “Installing device driver software”
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Windows notifies “Device driver software was not successfully installed”
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Shows in Dev Mgr as unknown device but with WDC Model Name.
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Automatic and manual driver search failed.
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Checked cables etc. and reboot. Same outcome
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DOA? Removed WD10 and tried on another machine. Installed, not DOA.
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Checked device driver details (disk.sys and partmgr.sys) matched on both machines. Identical
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Checked SSD device driver details. Identical. Drivers present.
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Thinking time (recap: removed working WD2500 and replaced with working WD10EZEX but drivers now don’t install)
13. Replaced the original WD2500 and tried that - now get the same driver software problem.
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Pulled healthy WD500AAKX (secondary drive) from other machine - same problem.
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Machine is working fine with the SSD but a bit risky running one drive without backup!
*ONLY* thing that changed was the hardware: WDC drive model.
Any ideas, anyone?
*/EDIT typos/*