Issue with computer, help

Hi to all!. I some time ago bought new laptop and installed windows, and i have many problems that i wanted to resolve, but i don't know how. I was using windows 10, but i've installed windows and i think that there are some issues with firewall. I can't use postgresql port because it's often busy and some ports are not visible to other clients from the internet. May be, it is a problem with router, but I'm not sure. So what is your opinion?

Hi to all!. I some time ago bought new laptop and installed windows, and i have many problems that i wanted to resolve, but i don't know how. I was using windows 10, but i've installed windows and i think that there are some issues with firewall. I can't use postgresql port because it's often busy and some ports are not visible to other clients from the internet. May be, it is a problem with router, but I'm not sure. So what is your opinion?

hello

sorry for the late reply.

which windows you have installed, i suggest you to upgrade your windows online to get all drivers for all ports. let me know the version of your newly installed windows.