Change from AHCI to IDE Mode after Installation

Instruction:

• Exit all Windows-based programs.
• Press [Win] + R or take the RUN option from the start menu.
• Now type regedit there and press Enter Key to open up the Registry Editor Window.
• If you receive the User Account Control dialog box, click Continue.
• Locate and then click the following registry subkey:

  HKEY_LOCAL_MACHINE\System\CurrentControlSet\Servic es\Pciide

• In the right pane, right-click Start in the Name column, and then click Modify.
• In the Value data box, type 0 [3 is default], and then click OK.
• On the File menu, click Exit to close Registry Editor.
• Restart your computer
• Go to BIOS and enable IDE, Save & Reboot
• Another restart will be required to finish the driver installation.

Change from IDE to AHCI Mode after Installation

Information: AHCI stand for Advance Host Controller Interface. AHCI is a hardware mechanism that allows software to communicate with Serial ATA (SATA) devices (such as host bus adapters) that are designed to offer features not offered by Parallel ATA (PATA) controllers, such as:

• Hot-Plugging
• Native Command Queuing (NCQ) -might improve computer/system/hard disk responsiveness, especially in multi-tasking environment

You can read more about AHCI mode HERE

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

• Exit all Windows-based programs.
• Press [Win] + R or take the RUN option from the start menu.
• Now type regedit there and press Enter Key to open up the Registry Editor Window.
• If you receive the User Account Control dialog box, click Continue.
• Locate and then click the following registry subkey:

Change the Mouse Hover Time before Pop-up Displays

Information: This will show you how to change the delay time, in milliseconds, that the mouse pointer has to stay hovered on a item before it is selected or opens a pop-up in Windows 7. For example, how long it takes for a taskbar open window button before to display it's thumbnail preview while hovering the mouse pointer over it.

Note: If you have the Animations in the taskbar and Start Menu option checked in Visual Effects, then you may not see much or any difference. You will need to uncheck this option first before doing the tutorial below.

Change the Number of Processors Used at Boot Up

Information:
If you have a multiple core CPU (e.g. Intel Core Duo or Quad CPU) or multiple CPUs, then this will show you how to change the Number of Processors that will be used during boot up for troubleshooting and debugging purposes to be able to determine if there is a problem with a single processor/core, or for a programmer to test their code against a single core while running on their multi-core system.

Change the Power Plan To Maximum Performance

The Power settings in Windows 7 is not automatically set for maximum performance. By default the power plan in Windows 7 is set for a balanced performance with energy consumption on hardware. So you may not get the optimal performance from windows 7 if this is the case. So we need to change the power plan to High Performance Mode.