I can't Install USB blaster. - I can't Install USB blaster. I install Quartus Prime Lite 20.1.1. it successfully installed but usb blaster driver isn't. I try to install manually but I failed every time. I try to find new driver, but it seems all driver download page is dead. dose anyone have new driver file? Replies: Re: I can't Install USB blaster. Thanks, BRRRRT, I will try it. After I posted my question I was able to install the driver in a special boot mode without signature check: https://www.howtogeek.com/167723/how-to-disable-driver-signature-verification-on-64-bit-windows-8.1-so-that-you-can-install-unsigned-drivers/ BR, VG Replies: Re: I can't Install USB blaster. try this. File:Usb blaster q16.1.zip - Terasic Wiki Replies: Re: I can't Install USB blaster. Hello, Can you provide a similar link for USB-Blaster? It has the same expiration issue. Thank you, VG2 Replies: Re: I can't Install USB blaster. Hi, Thank you for contacting Intel community. That might be due to issue with USB Blaster. Kindly follow the workaround in KDB below (it is also applicable for USB Blaster): https://www.intel.com/content/altera-www/global/en_us/index/support/support-resources/knowledge-base/tools/2021/why-does-the-intel--fpga-download-cable-ii-driver-installation-f.html Thanks. Regards, Aiman