This came from the driver cd that came with a cheap ch341 based usb to serial adapter that had numerous other drivers on the cd as well. this is the correct driver for the serial adapter, and it includes drivers for windows 7 x64.. But if you have the ch340 driver installed, then plug in the ch340 and windows will just link the driver for you. no need to dig through .inf files. but the fact you "installed" ftdi drivers for it i start to think it's not a ch340 but just a chinese/counterfeit ftdi which will install with the latest ftdi drivers but just will not work.. This came from the driver cd that came with a cheap ch341 based usb to serial adapter that had numerous other drivers on the cd as well. this is the correct driver for the serial adapter, and it includes drivers for windows 7 x64..
Driversdownloader.com have all drivers for windows 8, 7, vista and xp. and for windows 10, you can get it from here: windows 10 drivers download.from this website, you can find find almost drivers for the dell, acer, lenovo, hp, sony, toshiba, amd, nvidia, etc manufacturers.. There is a links to tested working software and drivers with this programmer. all drivers should work on all windows versions: xp, vista, 7, 8, 8.1, 10 on both 64 bit and 32bit versions (x86).. Win 10 usb driver for connecting to ch340 serial to usb chip i am trying to connect to an arduino with a ch340 serial to usb chip via my usb port but the computer will not recognize it. i am reading up that it requires a usb driver update for it to work..
