I tried to write some floppies (RAW, ADF...) in one of my computers and I receive the following error: I can check the FDD and I can dump... I only cannot write!

In another computer everything is working... the matter could seem solved but I "need" to use my Kryoflux in a specific PC that is located in my "Laboratory".
Can somebody find out the issue?
Another issue is the BOSSA one... from time to time Windows decides to "force" the BOSSA driver instead than the Kryoflux one... is there a way to solve this issue?
Thank you