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Windows 7: AHCI Issue

25 Jun 2012   #11

Windows 7 Ultimate x64 SP1

If you didn't format it, then there shouldn't be any partitions showing on the drive, at all. Use the DISKPART option to clean the drive first, and then try installing. You mentioned in an above post that you formatted your C that's where I was getting it from.

My System SpecsSystem Spec
25 Jun 2012   #12
Night Hawk

W7 Ultimate x64/W10 Pro x64 dual boot main build-remote pc W10 Pro x64 Insider Preview/W7 Pro x64

If the drive is "raw" to begin with why you would need to clean it? The drive tools on the 7 dvd will tend to partitioning and formatting the drive for use. Other options would be used if he didn't want the 100mb System Reserved partition created to see the drive made ready.

With the latest 7 install here that was with the Native ide setting. Later when changing it to AHCI 7 went to work configuring the two OS drives as SCSI devices and prompted to restart on the first desktop upon re-detection of the other two storage drives.

One way to find out if the drive you are trying to see 7 installed on is working would be booting from a GParted live cd or flash drive and the first shown should be the target drive for 7. Then you simply go to the menu bar>Devices and click on the "Create new partition table" option. Click the apply button and watch if that works.

Then you click on new and select primary and afterward NTFS in lower case from the dropdown menu and click the apply button. A last click to format and again select NTFS from the list of files systems as well as labeling the new volume created will be seen by the 7 installer.

The trick is to get something on the drive first when any Windows installer is not playing well. I ran into that with a 98 VM project where simply getting a few setup files onto the VHD then allowed that old installer to recognize the virtual disk and proceed with the install. This will also see a single primary if you are not interested in seeing the 100mb boot partition on the drive once 7 is on.
My System SpecsSystem Spec

 AHCI Issue

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