USB-Blaster on Windows 7

Hi,

Actually, you didn't need to replace the 9.1 driver folder by the old one, you only need to have the 7.1 drivers somewhere on your disk only during the usb-blaster installation. But it is ok that you replaced the folder, anyway, the 9.1 drivers supposedly do not work on Win 7 64-bit.

Now, you need to go to the Device Manager, find the USB-BLASTER under USB devices somewhere, it should be highlighted with some sort of question mark because it has failed the plug-and-play install. Then, you right-click on it, and choose something like "Update Driver Software" or perhaps "Install Driver Software". You need to manually click on Browse and point to the folder with the 7.1 drivers that I posted. There will be some complaints about the driver not being signed, just ignore it and accept the installation anyway.

Remember that you need to reboot your computer and choose "Disable driver signature enforcement", if you had recently restarted your computer without that option. You will need to do that everytime you want to use your usb-blaster.

Again, this procedure seems a bit painful, but it works just fine if you're systematic! However, like some people pointed out, the latest version of Quartus might include signed drivers that should work right away.

Good luck.

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TCRDL,

Okay so I selected "disable driver signature enforcement" when booting up, and I have replaced the "usb-blaster" folder in the driver folder for my Quartus 9.1 and still doesn't work.

So my computer recognizes the usb-blaster but won't install it, if that made sense. It's listed under Unspecified in Devices and Printers and it won't install through Device Manager.

Any ideas?

Thanks!

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