CyberNotes: Use Any USB Drive or Memory Card with ReadyBoost on Vista
Microsoft’s newest operating system, Windows Vista, offers a really unique feature called ReadyBoost. The goal of it is to use a USB drive or memory card to increase the amount of memory that your system has to use. The results of adding a memory card or flash drive to Vista for memory usage can actually be quite astonishing.
One of the main problems is that you typically need a high-speed device because Microsoft wants to make sure that you get the most out of ReadyBoost. None of the memory cards or USB drives that I have laying around actually met the requirements for ReadyBoost, and every time I tried to use it I would receive this warning: “This device does not have the required performance characteristics for use in speeding up your system.”

Have no fear though, because you can use almost any USB drive or memory card with ReadyBoost! Although you may not receive optimal performance from it if the card doesn’t meet Vista’s standards.
Here’s how you can enable ReadyBoost on Vista for any memory card or USB drive:
- Insert your USB Drive and choose the ReadyBoost option when prompted. If you’re not prompted you can always go into Windows Explorer, right-click on the device, and choose Properties.

- Check the box that says Stop retesting this device when I plug it in. Press Ok.

- Now you’ll need to open up the Windows Registry, which can be done by opening up the Start Menu and typing regedit. If you get prompted by the User Account Control just select the option to Continue.

Note: I realize that editing the registry might be something you’re weary about doing, but if you stick to the instructions you won’t have any problems.
- Browse the tree on the left side of the Registry Editor making your way through the “folders”: HKLM (Local Machine) -> SOFTWARE -> Microsoft -> Windows NT -> CurrentVersion -> EMDMgmt
One of the keys listed should be your USB Drive. Find it and click on that item (the names might look a little weird but you can probably recognize your drive).

- Double-click on the Device Status entry on the right side and change the value to 2. Press OK.

- Change both the ReadSpeedKBs and WriteSpeedKBs to 1000 by double-clicking on each of their names. Press OK.

- Now open up Windows Explorer, right-click on your device, and choose the Properties option. You should now see the option to Use this device, and once you pick that you can choose how much memory can be used by ReadyBoost:

That’s all there is to it! The reason why this works is because we’re telling Vista a small little lie. We’re saying that the device is actually faster at reading and writing than it actually is, which means that in the long run we may not see all of the benefits that ReadyBoost actually offers. At least you are able to play around with it and be your own judge whether it improves the performance of your PC!
Source: Windows Vista Magazine
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Tags: CyberNotes, Software, Windows, Windows Vista


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Wondering how effective will this be… If the disk doesn’t meet the requirements will this method allow for some performance, isn’t there a risk that this will slow down the system?
No, not really. Vista will only use the drive if it runs out of memory. Normally it would put the extra data on the hard drive, but the Flash drive is pretty much faster in every case. So the results should almost always be better.
Works EXCELLENT. On a P-M/1.8GHz/1GB laptop with slow 80GB disk, with 2GB Kingston ’slowspeed’ USB Stick, even more responsive when loads of software loaded up. Used 1,6GB and still not ‘XP swapping’
Glad it worked out so well for you! That’s the kind of response we like to see on our tips!
it worked on my usb flash drive that i had 1 FAT32 & 1 FAT partition. i used the FAT partition since it was the smaller part of the drive
Hmmm.. is there any way to check whether your pc is using the usb stick? like a diagnostic tool? for higher end video cards people use the crysis test etc.
Following the instructions by author Ryan, I configured Kingston Data Traveller 2 GB flash. Process went flawless. I allocated 1 GB ( Installed RAM = 512 MB))for ready boost. Still not sure whether it helps but at least its not any problem.
Thanks Ryan.
Ghani (Karachi Pakistan)
Excellent info,
I was waiting for the reg hack hehe,
next, can we use more than 4gb? for 64bit systems?
google for ReadyBoost Monitor. that tiny tool shows you if it works well.
another way to check is the Resource Monitor integrated to vista. just roll up the disk info and sort by file and you will notice your flash drive being present if you managed to enable it and it is used.
“Cannot edit DeviceStatus: Error writing the value’s new contents.”
…help?
I did the registry editing under my administrator account, and the error did not come up. Now, let’s see how well this works!