USB BLaster !!!quartus not detecting usbblaster

Hi abuaba,

I dont know why this works for different problems in windows despite the logged in user already having admin privileges. It's actually part of the compatibility layer. Windows security is a complete mess as far as permissions go and I never cease to be amazed.

This worked for me even though the blaster was already showing in device manager. Also note that after you try the fixes you may need to expand the device selector windows in Programmer for it to be seen and selected.

Good luck