Network and Internet Change Encryption Level for File Sharing Connections in Windows 11


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Network_and_Internet_banner.png

File and printer sharing is the ability of a computer running Windows to share a folder or attached printer with other computers on the same network.
  • File sharing allows you to make files and folders in a shared folder accessible to others on the same network to view, copy, or modify.
  • Printer sharing allows you to make an attached printer available to other computer users on the same network.
Windows uses 128-bit encryption to help protect file sharing connections by default. Some devices do not support 128-bit encryption and must use 40- or 56-bit encryption.

This tutorial will show you how to change to use 128-bit or 40- or 56-bit encryption for file sharing on all networks in Windows 11.


You must be signed in as an administrator to change the file sharing encryption level.



Contents

  • Option One: Change File Sharing Encryption Level in Settings
  • Option Two: Change File Sharing Encryption Level in Control Panel
  • Option Three: Change File Sharing Encryption Level using REG file




Option One

Change File Sharing Encryption Level in Settings


This option is only available starting with Windows 11 build 22509.1011.


1 Open Settings (Win+I).

2 Click/tap on Network & internet on the left side, and click/tap on Advanced network settings on the right side. (see screenshot below)

File_sharing_encryption_Settings-1.png

3 Click/tap on Advanced sharing settings on the right side. (see screenshot below)


File_sharing_encryption_Settings-2.png

4 Click/tap on All networks to expand it open. (see screenshot below step 5)

5 Select 128-bit encryption (default) or 40- or 56-bit encryption for what you want in the File sharing connections drop menu.

File_sharing_encryption_Settings-3.png

6 You can now close Settings if you like.




Option Two

Change File Sharing Encryption Level in Control Panel


This option is no longer available starting with Windows 11 build 22509.1011.


1 Open the Control Panel (icons view), and click/tap on the Network and Sharing Center icon.

2 Click/tap on the Change advanced sharing settings link on the left side in Network and Sharing Center. (see screenshot below)

File_sharing_encryption_Network_and_Sharing_Center-1.png

3 Expand open the All networks. (see screenshot below)

4 Under File sharing connections, select (dot) 128-bit encryption (default) or 40- or 56-bit encryption for what you want, and click/tap on Save changes.

5 You can now close the Control Panel if you like.

File_sharing_encryption_Network_and_Sharing_Center-2.png





Option Three

Change File Sharing Encryption Level using REG file


1 Do step 2 (128-bit) or step 3 (40- or 56-bit) below for what you want.

2 Use 128-bit Encryption for File Sharing Connections

This is the default setting.


A) Click/tap on the Download button below to download the file below, and go to step 4 below.​

Use_128-bit_file_sharing_encryption.reg


(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0]
"NtlmMinClientSec"=dword:20000000
"NtlmMinServerSec"=dword:20000000

3 Use 40- or 56-bit Encryption for File Sharing Connections

A) Click/tap on the Download button below to download the file below, and go to step 4 below.​

Use_40-56-bit_file_sharing_encryption.reg


(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00

[HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\Lsa\MSV1_0]
"NtlmMinClientSec"=dword:00000000
"NtlmMinServerSec"=dword:00000000

4 Save the .reg file to your desktop.

5 Double click/tap on the downloaded .reg file to merge it.

6 When prompted, click/tap on Run, Yes (UAC), Yes, and OK to approve the merge.

7 You can now delete the downloaded .reg file if you like.


That's it,
Shawn Brink


 

Attachments

  • Network_and_Internet.png
    Network_and_Internet.png
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  • Use_40-56-bit_file_sharing_encryption.reg
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  • Use_128-bit_file_sharing_encryption.reg
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