Not able to identify Cyclone IV with Quartus2 on Windows11 - Not able to identify Cyclone IV with Quartus2 on Windows11 Hello together, meanwhile I have a Windows 11 Home 23H2 notebook and after long time I would like to play a little with my Terasic DE0_Nano board which contains a Altera Cyclone® IV EP4CE22F17C6N. The DE0_Nano has an onboard programmer (USB-Blaster), however when I have installed either ... Quartus-lite-18.1.0.625-windows QuartusLiteSetup-23.1std.1.993-windows Quartus hang up and give no response anymore or I get no checksum. After some searching in the web, I have seen that USB-Blaster isn't supported by Windows11. On the other hand, there are some work arounds or it is meantioned even a compatibility https://www.intel.com/content/www/us/en/support/programmable/support-resources/design-software/os-support.html#tab-blade-1-2 Does anybody can provide me a valid statement, wehter DE0_Nano and onboard USB-Blaster are working for instance with QuartusLiteSetup-23.1 or newer? Replies: Re: Not able to identify Cyclone IV with Quartus2 on Windows11 Hello sstrell, you're rigtht - I'm supprised but after tried to run it with Quartus-lite-18.1.0.625 (which was mentioned somewhere in the forum) I have retried with v23.1 again. I have open a really old beginner test-file and I was able to flash the Cyclone and I also could check the functionality sucessfully. I'm suppriesed rigth now but also confirm that DE0_Nano is runnign with Quartus-lite-23.1. Replies: Re: Not able to identify Cyclone IV with Quartus2 on Windows11 23.1 should work fine in Windows 11. You should try reinstalling Quartus or just the USB Blaster drivers. Are you saying it crashes/freezes when you start the Quartus Programmer? More details on exactly what is happening.