How to close the unnecessary port

  

in the win7 system 1. Open the run (win+R), enter regedit and click OK.

2, in the open registry editor window, expand HEKY_LOCAL_MACHINESYSTEMCurrentControlSetServicesNetBTParameters in the left menu bar;

3, right click in the right margin and select New -DWORD32 bit value, Name the new item SMBDeviceEnabled;

4. Open the SMBDeviceEnabled option, set the value of the numeric data to 0, and then confirm the save settings.

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