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


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Network_and_Internet_banner.png

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.

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.


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 version 22H2 KB5030310 Build 22621.2361.


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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