Hello. I am using W7 X64 with SP1, and have the driver installation issue as in this question. If I try installing with the command line, I have that message:
I tried to install the W7 update posted by Pascal Quantin, but Windows tells me it's already installed.
asked 27 Jan '16, 02:28
converted to question 27 Jan '16, 03:09
For Vista x64 and Win7 x64 users:
If you still get the pop-up window that said Windows requires a digitally signed driver (or get error 577 when executing net start npf), please try these steps:
1) Install Microsoft's KB3033929 patch successfully (it should requires reboot).
2) Install latest Npcap 0.05-r8.
3) If step 2) still fails running the driver, then reinstall an alternate version of Npcap you NEVER installed on the machine before (like 0.05-r7, if you unfortunately tried 0.05-r7 before step1), then try 0.05-r6.) to "flush" the driver cache. You should use the same option of Install Npcap in WinPcap API-compatible Mode as you did in step 2). This installation of 0.05-r7 should work.
4) Reinstall back the latest Npcap 0.05-r8. This second-time installation should succeed.
You should install the lastest Npcap 0.05 R14, all signing issues should have gone.
answered 29 Jan '16, 09:56
edited 26 Feb '16, 19:10