How Change File Sharing Encryption Level in Windows 11 and 10
The File sharing feature allows you to share files and folders with others on the same network. The feature is quite useful and we can easily turn on the file and printer sharing feature in Windows 11/10 but Windows uses 128-bit encryption to help protect file sharing connections by default . On the other hand, Some devices do not support 128-bit encryption and must use 40- or 56-bit encryption for example your older operating systems may use only 40-bit or 56-bit encryption for file sharing.
Change File Sharing Encryption Level in Windows 11
1. Open Windows 11 Settings.
2. Select Network & internet in the left sidebar.
3. Click on the Advanced network settings option on the right.
4. Under the “More settings” section, click the Advanced sharing settings option. Or Click on the Search box of your Windows 11/10 computer and Type advanced sharing settings
5. Click on the All networks tile to expand it.
6. Finally, click the File sharing connections drop-down menu and choose the 128-bit encryption (Recommended) or 40- or 56-bit encryption option
Change File sharing Encryption Level using Registry Editor
navigate to the following path in the left sidebar of Registry Editor
In the right-hand section, double-click on the NtlmMinClientSec DWORD (32-bit) Value REG_DWORD and set its “Value data” to the following :
0 = To use 40- or 56-bit encryption.
20000000 = To use 128-bit encryption.
In the same way, open the edit box of NtlmMinServerSec DWORD (32-bit) Value and change its Value too.
To use 128-bit encryption
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0] "NtlmMinClientSec"=dword:20000000 "NtlmMinServerSec"=dword:20000000
To use 40- or 56-bit encryption
Windows Registry Editor Version 5.00 [HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0] "NtlmMinClientSec"=dword:00000000 "NtlmMinServerSec"=dword:00000000