Windows encountered a problem installing the drivers for your device

'''Q:''' I'm not able to install the USB Blaster driver When I use the Quartus 19.2 or 20.1, please see the picture below for the error message how can I fix it?

[[File:Eror_message.png|400px]]



'''A: Please try the driver in this link http://mail.terasic.com.tw/~bingxia/usb-blaster.zip,  or http://mail.terasic.com.cn/~bingxia/usb-blaster-ii.zip , then follow the guidance below to install the driver：''' 


1. Right-click on the "USB Blaster" and then select "Update driver …".

[[File:Update driver.png|400px]]

2. Select "Browse my computer for driver software"

[[File:Browse_my_computer.png|400px]]

3. Select "Browse..." to select the driver we have provided to you, then click “Next” to install the driver.

[[File:Select_the_driver.png|400px]]

4. After that you should install the driver successfully

[[File:Install_the_driver_successfully.png|400px]]