Hello all, I want to use 2 FTDI USB-to-Serial converters (US232R and FT4232H) with my  Laptop Acer Aspire with 64-bit Windows 10, Home edition. But the installation  of the (latest) FTDI drivers fails. I tried automaic installaion via the Windows Device Manager and manual installation by running the .inf file. With both methodes  I get the same  Windows error message, saying that Windows found drivers for the device, but an error occured during installation, see screenshot.   When I check the hardware for problems Windows says that there are no drivers installed for the US232R/ FT-4232H.

With a Toshiba Laptop and a Cativa desktop PC, both also with 64-bit Windows 10 Home, the installation worked flawlessly and the adapter generates the virtual COM ports

I googled for a solution but without success. There are more users who report the same error message with other USB-devices. There was a suggestion for Windows 7 to delete a file named InfCache.1. I can't test that, however, because  Windows 10 doesn't provide that file, the content has been moved to the registry.  The FTDI support suggested to first uninstall the drivers, but the problem remains.

Has anyone else encountered the same problem and is there a solution?

Many thanks for any support

73s, Erich, DK1TB