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windows 7 does not detect eSata drive

C

Corporate Thug

Lifer
So every time I want to access my external Esata drive, I have to go into control panel and scan for hardware changes to get win 7 to recognize the drive.

Any suggestions?

Thanks.
 
What disk controller is handling the eSATA port?
What driver is installed for that port?
What motherboad? The Asus?
 
Last edited:
How to enable AHCI in Windows 7 RC after installation

AHCI (Advanced Host Controller Interface) enables native command queuing and hot-plugging through SATA host controllers (Serial-ATA) for your hard drives. In many scenarios it enables more efficient multi-tasking. Vista was the first Windows OS to support AHCI out of the box, where as Windows 7 does the same. But an issue with AHCI is that if you install the OS without enabling AHCI in the BIOS, enabling it after installation will render your OS unusable. This is because Windows disable the AHCI driver since it is not needed during the installation.

There is one way to fix this, although you need to have knowledge of registry editing. The detailed steps from Microsoft are as follows:

To resolve this issue, enable the AHCI driver in the registry before you change the SATA mode of the boot drive. To do this, follow these steps:

1. Exit all Windows-based programs.
2. Click Start, type regedit in the Start Search box, and then press ENTER.
3. If you receive the User Account Control dialog box, click Continue.
4. Locate and then click the following registry subkey:

HKEY_LOCAL_MACHINESystemCurrentControlSetServicesMsahci

5. In the right pane, right-click Start in the Name column, and then click Modify.
6. In the Value data box, type 0, and then click OK.
7. On the File menu, click Exit to close Registry Editor.

After this you’ll have to restart your computer, go to BIOS and enable AHCI. When you log in to Windows again, you’ll notice the installation of drivers for AHCI. Another restart will be required to finish the driver installation.
Click to expand...


I suggest yah point yah Googler in a similar direction and study up on other possible fixes for your conundrum. The issue most likely is that if you installed Windows in IDE mode (ie you didn't use F6 and supply a driver), it is requiring changes to your config from within Win7.





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Also you need to enable Hot Plug function in bios after changing your storage mode to AHCI. You must run in AHCI in order to use hot plug functions for eSata.
 
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