How to unlock the port?
Sometimes, for security reasons, on computers they block ports through which information leakage can occur. This requirement is often made for workstations in enterprises to protect sensitive information and improve the performance of network connections.
What you need to do to unlock the USB port
One of the most common sources of viruses is a flash drive, which is why system administrators sometimes block USB ports, and then the flash drive is either not recognized at all by the computer, or it is impossible to record information on it. But sometimes the situation is such that you urgently need to use a flash drive, and then the question arises: how to unblock the USB port quickly?
To do this, you will need to make changes to the computer's registry, which can be done either manually or with the help of special programs, for example, usbstorageunlock.reg. If your drive does not connect, although the system detects it, try changing the registry manually.To do this, in the HKEY_LOCAL_MACHINE \ SYSTEM \ CurrentControlSet \ Services \ UsbStor section, you should go to the “Start” parameter and return the value “4” changed by the admin to “3”. If your flash drive is successfully connected, programs are started from it, but the information cannot be written to it, you should find the WriteProtect parameter from and change its value from “1” to “0”.
Sometimes users are faced with the problem of blocking the external port of the computer, or incorrect operation of the network port. The question of how to unblock a port is solved as follows. Select the network connection you need and open the "Properties" item, then go to the "Advanced" section. In the "Windows Firewall" section, click on "Settings" and go to the "Exceptions" section. You will see a list of firewall protection exceptions. If it has the port you need, then find it and unlock it. To do this, opposite the port name, in the list of items, check the box with the mouse.
If the required port is not listed, click the Add Port button. In the fields that you see on the screen, write his number and name and click "Ok." After that, the port will appear in the list and you can easily unblock it. Save all changes by clicking “OK” in all tabs of the firewall and network connections window. After that, the network port will work properly.