Does Quartus Prime only use USB-Blaster-II? It reports "no drivers" for Rev B and Rev. C Blasters.

[Dr_Bunsen_Honeydew]

 I bought two of the older Blasters (genuine and expensive) for a bulk programming job, so I'd rather get them working than write them off as obsolete. I assume Altera omitted the drivers for a good reason.

[sstrell]

Not sure what you're experiencing, but maybe one of these help:

https://www.intel.com/content/www/us/en/support/programmable/articles/000086243.html?wapkw=usb%20blaster%20ii%20driver

https://www.intel.com/content/www/us/en/support/programmable/articles/000074502.html?wapkw=usb%20blaster%20ii%20driver

https://www.intel.com/content/www/us/en/support/programmable/support-resources/download/dri-index.html

[Dr_Bunsen_Honeydew]

Cable and Adapter Drivers Information | Intel does not list the pre- Blaster-II devices.

I downloaded Driver USB Blaster and tried to install it.
I got this:

It says there was a problem, but does not say what it is.

[sstrell]

You don't mention what version of Quartus you're having an issue with, but you should try the patch in the first link I posted above or try this one: https://www.intel.com/content/www/us/en/support/programmable/articles/000092460.html