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If you just buy Windows Vista or you have acquired a new computer, you have probably already heard of ReadyBoost technology that can help relieve or increase the RAM on your computer using a simple 2.0 USB key or flash memory card.

We'll see how to turn this option on a key USB 2.0 with Windows Vista Home Premium ...

The goal is to use Readyboost memory available on an external device to increase the available system memory. This memory is used as a cache for system information.

The system to be effective, requires greater memory capacity on the external device (1GB recommended) and a high speed data transfer with at least:

- Speed reading at least 3.5 MB / second.
- Write speed of at least 2.5 MB / second.

=> Most USB 2.0 key meet these specifications, but if your key is not detected as compatible with Vista, the menu on the Readyboost will not be available (is dimmed). We shall see later how to force USB stick detected as inconsistent to accept the Readyboost.

The USB 2.0 key that we connect is a Corsair Flash Voyager with 2 GB of memory. This key provides 1.3 GB of free memory (the rest being held by the application Framakey and documents).

Once the key plugged in, just go under "Start" => "Computer" to view your desktop. The icon for your USB key is available. Right click it and select "Properties."

In the new window that opens, select the tab "ReadyBoost" and check the option "Use this device".

That's it, your system now uses the available memory in the key as extra memory.

We can easily verify this by exploring our USB key, a new file is available corresponding to the cache used by ReadyBoost.

Now, if the menu is grayed Readyboost, then your USB stick is not considered compatible with Windows Vista Readyboost. There is still a way to force compatibility.

1 - Connect the memory device (key, memory card).
2 - Open Windows Explorer (Start menu, then "Computer").
3 - Ask the device properties. Go to the ReadyBoost tab.
4 - Select "Do not retest this device".
5 - Disconnect the device and wait about twenty seconds.
6 - Run regedit by typing the command in the Start menu.
7 - Deploy the registry HKEY_LOCAL_MACHINE entry.
8 - Open the key "SOFTWAREMicrosoftWindows NTCurrentVersionEMDgmt.
9 - Locate your device in the list.
10 - Change the Device Status and pass it to "2".
11 - Change the value WriteSpeedKBs and go to the "1000".
12 - Change the value ReadSpeedKBs and go to the "1000".
13 - Close Regedit.
14 - Connect to the new memory device and wait until it is detected and recognized.
15 - Open Windows Explorer (Start menu, then "Computer").
16 - Ask the device properties. Go to the ReadyBoost tab.
17 - Check the box "Use this device".

Here, your key is now regarded as being ReadyBoost compatible. It is not recommended to perform this operation because if your key is not recognized as compatible, it's mostly because the transfer rate of the latter are not sufficient and you may get the opposite effect by slowing down your system.

To summarize, the faster the device used is more significant gains will be noticeable.

Enjoy

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