While opening wireshark for network analysis, it shows a warning 'No interfaces found', NPF driver is not running etc. and no network interfaces can be seen.

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This is because the NPF driver is not running. Close wireshark and follow below steps:
-Open command prompt and 'Run as Administrator'.
-Type 'net start npf' (without inverted commas) and hit enter
-You should see the message that NPF driver has been started successfully.
-Now wireshark should run and show the list of interfaces.