How to force ReadyBoost on a USB device

In Windows Vista, Microsoft introduced an interesting feature, which is ReadyBoost. The so-called ReadyBoost, in short, is to expand the Windows cache and improve the performance of Windows Vista by using a USB device with a USB 2.0 interface —— flash or U disk —— Our tests have shown that for low-profile PCs, especially for low-memory PCs, the performance gains from ReadyBoost are significant. In order to ensure the effect of ReadyBoost and avoid the possible negative effects of low-speed USB devices, Microsoft has certain requirements on the read/write speed of USB devices that can be used for ReadyBoost, such as no less than 2.5MB/s for 4K random reading. The 512K random write is not less than the transmission rate of 1.75MB/s. If Windows Vista detects that the USB device does not meet the corresponding requirements, the ReadyBoost feature cannot be enabled. To be honest, the domestically confusing USB storage market in the past few years has caused a corresponding part of the U disk to be extremely inferior in technical specifications, including many so-called famous products, which makes many users can only look at ReadyBoost. Recently, the Channel9 forum provides a method for forcibly enabling ReadyBoost on USB storage devices that are not supported by Windows Vista, including USB external hard disks. Interested friends can try it. Explanation: This technique has not been tested, because when we insert the USB flash drive into the system, there is no option in the following setup steps, and instead of the interface in the following figure, this is very confusing, the device is directly inserted into the PC. The USB port on the motherboard does not use a device like a card reader. Why is it that the device is plugged into an interface that is not supported? Moreover, the more funny thing is that when we insert the card reader and the SD card into the USB port, ReadyBoost is successfully enabled (see Using the SD card to enable ReadyBoost). The legend in the setup steps below comes from vistarewired; forcing the use of ReadyBoost to cause damage to USB storage devices and enabling ReadyBoost on unsupported devices can provide performance improvements, Vista does not guarantee. Forcibly enable ReadyBoost to plug in a USB device on a USB device that is not supported by Windows Vista; open the device properties page and click “Start” => “Computer” => Right Properties=> “ReadyBoost” Tab Check the "Stop retesting this device when I plug it in." and "mdash;— in view of the confusion in the cultural translation of Windows Vista, we can no longer try to figure out the translation before we see the specific picture. : It may be any kind of translation! Unplug the USB device; open the Registry Editor and find the branch of the table: HKEY_LOCAL_MACHINE /SOFTWARE /Microsoft /Windows-NT /CurrentVersion /EMDgmt Find the corresponding USB device item and modify the following three items: DeviceStatus : 2 ReadSpeedKBs :1000. WriteSpeedKBs :1000 Plug in the USB device again and you will see that ReadyBoost is enabled.