BackupPC on Windows


  • Connected via LAN cable to the internet.
  • Your computer has to be registered

Create a user account

Create a new user with administrative privileges: Open the window Computer Management by right-clicking the the windows logo at the bottom left of the screen and selecting Computer Management. Expand Local Users and Groups, select Users and right-click to create a new user. * Set a strong password and a fitting username (eg backupPC) and set the flag Password never expires

image of the window "New User"

  • Double-click the newly created user, go to the tab Member of and add him to the group Administrators.
  • Verify that the user is member of the group Administrators.

Create a share

  • Expand Shared Folders in the window Computer Management, select Shares and create a new share.
  • Specify the folder you want to back up and add an appropriate share name.
  • Select Customize permissions and click on Custom..., remove the group Everyone and give the created user (eg backupPC) read permission to access the share.

image of the window "SharedFolder Properties"

  • Follow the installation wizard and finish the installation

Edit firewall rules

  • Search for the Network and Sharing Center in the Windows search.
  • Go to Change advanced sharing settings (on the left side), expand All Networks and verify that Password protected sharing is on.
  • Search for the Windows Firewall with Advanced Security in the Windows search, remember the active firewall profile and click on Inbound Rules on the left.

image of the "Windows Firewall" startpage

  • Double-click File and Printer Sharing (Echo Request - ICMPv4-IN) for your active profile.
  • Select the tab General, tick the checkbox Enabled if it is not already ticked.
  • Choose the tab Scope, select Any IP address in the option Remote IP address and confirm the changes by pressing OK. If the rule is active you should see a green check mark.
  • Repeat the step with the rule File and Printer Sharing (Echo Request - ICMPv6-IN).
  • Repeat everything exactly the same with File and Printer Sharing (NB-Datagram-In) except in the tab Scope you add the server subnet and remove the entry Local Subnet from the list if you don't need File and Printer Sharing access from other computers.

image of the "File and Printer Sharing (NB-Datagram-In)" scope tab

Change remote UAC in registry

  • Type regedit in the Windows search and run it as administrator.
  • Navigate to HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Policies\System
  • Add a new "DWORD (32-bit) Value" called LocalAccountTokenFilterPolicy and change the "value data" from 0 to 1. image of the registry


  • If you are trying to connect to a Windows 7 box and smbclient fails with "protocol negotiation failed: ERRnomem", see here for a (Windows-side) solution. Details about why and how this works are on

Finally register the computer with us

After you've done all the steps above, you need to send us all the relevant information.