StepDouble-click on Network Security: Minimum session security for NTLM SSP Based (including secure RPC) ClientsĦ. Step Double-click on the item Network security: LAN authentication levelįrom the dropdown select: Send LM & NTLM responses:ĥ. Step Enter secpol.msc to open the Local Security Policy Editor, scroll down until you see this:ģ. The LM protocol is disabled by default on Windows Vista and Windows 7, so that you have to re-enable it in order to make file sharing between Windows 7 and MAC possible.Įnable Windows 7 MAC File Sharing via Security Policy EditorĢ. NTLM is a Microsoft authentication protocol and the successor of the LM hash a Microsoft authentication protocol that stores user passwords that are fewer than 15 characters long. If you want to share files between Windows 7 & MAC you have to make sure that Windows 7 is sending LM & NTLM responses. The LM protocol we use to share files between MAC and Windows 7 is considered to be a security risk, so I would not recommend to enable it permanently! Undo the changes when you are done to guarantee optimal security on your Windows 7 PC. Important Disclaimer: You should only follow this guide to share files between a MAC and a Windows 7 PC. If you want to share/transfer files between the two systems you have to modify the network security settings, enable the LM protocol and disable 128-bit encryption on Windows 7 or file sharing won’t work at all or if you are lucky only 1-way file sharing will work. Many design agencies use a MAC and not a Windows PC, although a Windows 7 PC looks far better than a MAC by now. Enable Windows 7 MAC File Sharing on Windows 7 Home Basic, Home PremiumĪ MAC might not the best gaming machine, although Valve is releasing more and more Steam games for MAC, but a MAC is great for working.Enable Windows 7 MAC File Sharing on Windows 7 Enterprise, Professional, Ultimate.Is it possible? Does Windows 7 & MAC file sharing work properly? If you’re at a LAN party and some of your friends use a MAC and you want to share files you will first have to tweak Windows 7 to send LM & NTLM responses! Read this tutorial to start transferring files between MAC and Windows 7!

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