Ftd2xx.dll errors are caused by the deletion or corruption of ftd2xx.dll, a DLL file that is part of a device driver from Future Technology Devices International.
How to Fix FTD2XX.dll Missing | Fix Not Found Error | Solution 64/32 Bit
Follow these steps in the order they are listed below to try the simpler solutions first.
Recover ftd2xx.dll from Recycle Bin. The simplest possible cause of a "missing" DLL file is that you accidentally deleted it.
If this is the case for you, but you've already emptied the Recycle Bin, you may be able to recover the files with a free file recovery program.