How to Disable BIOS Memory for Windows
Basic input output system is a low-level operating system that controls certain facets of your computer's hardware, such as the processor speed and memory timings. Disabling the BIOS memory settings such as the shadowing and cacheable settings will help to improve performance on some older operating systems. These BIOS memory settings are throwbacks from earlier systems, which are no longer necessary under Windows.
Restart your computer.
Press the key indicated during the start-up messages to enter BIOS. This key is typically either Esc or one of the F function keys.
Navigate to the Advanced settings menu by pressing the left and right arrow keys.
Use the up and down arrow keys to highlight the settings for **Shadowing** and **RAM Cacheable**. Press **Enter** after highlighting both entries and select the **Disabled** option.
Press **Esc** then press **Y** to exit and save changes.