Windows: Deactivate SMBv1 - how it works

SMBv1 is an outdated network protocol for the transfer of data. Here's why you should turn it off and how it works.

Windows: Therefore you should deactivate SMBv1

• SMB is a network protocol for transferring files. However, the first version of it is out of date and therefore no longer secure.
• A vulnerability in SMBv1, for example, has caused the cryptovirus Petya 2 to spread within LAN networks.
• Since SMBv1 is no longer used anyway, you can limit this security risk and safely deactivate the network protocol.

Deactivate SMBv1 under Windows - that's how it's done

1. To permanently remove the security risk SMBv1 from your computer, open the Control Panel, click on "Programs" and then on "Programs and Features".
2. Now press "Activate or deactivate Windows features" on the left and grant administrator rights if necessary.
3. Now you will see a list of all Windows features that are available on your PC. Deactivate the checkmark at "SMB 1.0 / CIFS File Sharing Support". Confirm with OK. Now SMBv1 no longer works on your computer.
4. Note: If the entry "SMB 1.0 / CIFS File Sharing Support" is not available on your computer, there is no need for action because the network protocol is then not active.

In the next practical tip, you will read how to transfer Windows 10 licenses.