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I have tried every online solution , run as admin, re-install the npf.sys appears in windows/system32/driver and msinfo>software environment>system drivers>npf but the driver can't be start there is no NetGroup Packet Filter Driver in my Device manager>Non-Plug and Play driver

really need help with this !!

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asked 07 Dec '15, 22:18

Biigg%20Sakun's gravatar image

Biigg Sakun
1111
accept rate: 0%


SYstem error 31 means:


ERROR_GEN_FAILURE

31 (0x1F)

A device attached to the system is not functioning.


It's very obscure to understand what it actually means.

You can try Npcap: https://github.com/nmap/npcap/releases, it is a fork based on WinPcap and have built its own drivers. So it will possibly solve your issue.

permanent link

answered 11 Apr '16, 17:36

Yang%20Luo's gravatar image

Yang Luo
9117
accept rate: 4%

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question asked: 07 Dec '15, 22:18

question was seen: 1,142 times

last updated: 11 Apr '16, 17:36

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