Im running Windows 10 Pro Build 10586 (10.0.10586) with Virtual Box v5.0.12 r104815

If your VM uses Host Only Adapter and it fails to power on, and gives this error:

NOTE: if you disable Host Only Adapter Network card it will power on.

Fix Zero (I ended up using this fix):

Its possible your getting this error because a certain option got unchecked. Open up your Network Connections control panel (Windows+R, ncpa.cpl, ENTER). Then you will see your Host Network Adapter

Right click on it and click Properties.

Make sure that the blue item “VirtualBox NDIS6 Bridged Networking Drive” is checked. Hit Okay and now test your VirtualBox.

NOTE: Here we are making sure NDIS6 is enabled. This is like the opposite of what we were doing with Fix One below, which asked VirtualBox to install with support for only NDIS5. Apparently that was the mistake, and the correct move is to use the newer NDIS6. But who knows maybe in your situation something like Fix One might work better.

Fix One (I used this one and it worked.. UPDATE 2016-01-19: not really):

UPDATE 2016-01-19: I noticed that I couldnt tie any network to my bridged adapter. I could only use a NAT network, and that was limited (I couldn’t get port forwarding functionality out of the NAT network – maybe I did something wrong with it. Anyhow I found a better fix to this whole issue). Check out fix 0

More information here https://forums.virtualbox.org/viewtopic.php?f=6&t=69597

I used VirtualBox-x.x.x-yyyyy-Win.exe -msiparams NETWORKTYPE=NDIS5 method to install it because I downloaded the exe file

Step 1. Uninstall Virtual Box
Step 2. Go to your C:\Users\folder and erase the .virtualbox folder (might be optional)
Step 3. Run ccleaner (might be optional step, google for it, its a free app)
Step 3a. Run the regular cleaner
Step 3b. Also run the Registry cleaner
Step 4. Open up cmd as Administrator. Windows Start Key – type cmd – CONTORL-SHIFT-ENTER (thats a shortcut to open something as Administrator in windows)
Step 5. cd to your folder where your installer file is (whereever your exe or msi file is, in my case its the file VirtualBox-5.0.12-104815-Win.exe)
Step 6. Run this:

Step 7. Install everthing
Step 8. Load your VM back up and it should start without the error

Fix Two (I have not tried this method):

More information here: https://forums.virtualbox.org/viewtopic.php?f=6&t=68590&start=450

The End

2 thoughts on “VirtualBox Host Only Adapter Error VERR_INTNET_FLT_IF_NOT_FOUND

  1. Make sure that the blue item “VirtualBox NDIS6 Bridged Networking Drive” is checked———it really works. tks

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