I was sent a Dropbox link by a trusted source. I am to use it to download a ".sys" file for one of my commercial embroidery machines. Every time I click on the link, I get a message that this kind of file can cause damage to my computer and therefore it will not be downloaded. I have a Windows 11 Pro (64 Bit) PC. Is it something in my system/security settings, or is it something Dropbox is requiring me to deal with differently?