Driver not working?

This is how I fixed the bad driver for my FT-991A

1. Uninstall driver by running Device Manager and locate the bad comport and do the following:

Look for the Yellow triangle - unintall the Enhanced and then the Standard port


2. After uninstalling Reboot the computer

3. Download the latest driver from (Win 10/11)   I used the FT-710 driver  

4. Download and extract to c:\! Driver folder

5. Right mouse on silabser.inf and click on install