Windows Driver Issues

Hi there, I have a DJM 450 and an XDJ Rx2. With both of these units I have terrible issues with Rekordbox suddenly not pointing to the relevant drivers. It works for a few days, then gives me the audio error messge. I delete the drivers from Windows, re install and sometimes it works straight away, sometimes after 2 hours of trying.

Its driving me crazy, can anyone advise? Have latesr firmwares and latest Windows tens, it happens pretty much every time after updating windows or Rekordbox but sometimes even without doing so.

Thanks for your help

Jamie