What’s wrong with the firewall? It appeared because of a virus or Malware corrupts SharedAccess.reg file. The SharedAccess.reg file represents the Windows Firewall service. In this several days I indeed always try to remove some virus that infect that computer, after removing the virus it appear to effect the network sharing.
How to fix it?
Call the “Setup API InstallHinfSection” function to install Windows Firewall.
To install Windows Firewall, follow these steps:
Ok, now I can already access the firewall settings, sometimes after step2 you can jump to step 5 without restarting the computer, but sometimes need to restart .