Since I have installed MY Passport I have started to get alarm messages like "Resourses critically low on C: Please empty the trash or make space on C?
When I check the C: there are still 195 GB available?
The other thing is when I started to install I did not recocnoce if the security part is otional. Do I need it as I already have a virus proytection?
The Passport should have no relation with the low space message, you could try to right click on C/Properties and click on disk cleanup. If you are referring to WD Security, this is an optional feature that allows you to lock the Passport so only the ones that have the Password can access it.