Actually, I haven't had major issues with Windows 10, and this installation has been in place since the release in the Summer of 2015. FWIW, I don't go to extreme lengths to avoid being hacked, but I take what I believe are sensible precautions, including firewalls, a decent AV scanner, and an anti-malware scanner. My router is indeed setup to allow nothing incoming as I don't have any need to punch holes through the NAT layer. I also don't do stupid stuff like fall for email fishing schemes. I haven't had any issues with being hacked, though I'm sorry I missed out in the 26 million dollars from the Nigerian Prince, that would have come in handy. 
Another measure that is so often overlooked is good backup. I'm not talking about sticking a USB stick in once in a while and saving your Documents folder, I'm talking about a real backup, preferably with multiple generations. I have a couple of NAS drives and several off-line USB drives that I do regular daily backups, the NAS backups are automatic. I also have a cloud service that I maintain all my documents and development files on.
