In some cases, when installing the Hamachi network adapter, Windows fails to properly install, and there is no Hamachi adapter listed in the Network Connections folder. In this case, you may have to manually reinstall the network adapter as follows:
1. Go to Start > Run, and type hdwwiz.cpl (pre Win 10) or hdwwiz.exe (Win 10 or above). If you receive an error, or your computer runs on Windows 7 or Vista, try again with hdwwiz only.
2. If it begins searching immediately, let it finish, then choose Yes, I have already connected the hardware.
3. If it displays the currently installed devices, scroll down to the bottom.
4. Choose Add a new hardware device. If it is not there, go to the next step.
5. Choose Install the hardware that I manually select from a list (Advanced).
6. Select Network adapters.
7. Click Have Disk and then Browse.
8. Browse to the installation folder, and select the setup information file for your system.
hamachi.inf: Windows XP, Vista, 2003, 7, 2008, and 2008R2
hamdrv.inf: Windows 8 and above
9. Finish the installation of the adapter.
10. Check your Network Connections folder and see if Hamachi's adapter is called Hamachi, and not something like "Local Area Connection 4". If it is not named Hamachi, then rename it to Hamachi and try running the application again.
11. Make sure that Network Connection Hamachi is activated.
Important: If your anti-virus software reports or blocks Hamachi-2-ui.exe, you must add an exclusion for the Hamachi-2-ui.exe program. Consult your anti-virus software documentation for assistance with adding an exclusion to the allowed list.