This tutorial will show you how to enable or disable the acrylic blur effect on the sign-in screen background image for all users in Windows 10 and Windows 11.
The lock screen is the screen you see at startup and when you lock (Win+L) the PC. You will need to dismiss the lock screen to to see the sign-in screen and sign in to Windows.
By default, the sign-in screen background image has an acrylic blur effect as part of Windows 11 transparency effects.
If you would prefer to have a clear sign-in screen background image without affecting other transparency effects for users, you can enable the Show clear logon background group policy.
The acrylic blur effect on the sign-in screen background image requires transparency effects to be turned on.
You must be signed in as an administrator to enable or disable the acrylic blur effect on the sign-in screen background image.
Contents
- Option One: Enable or Disable Acrylic Blur Effect on Sign-in Screen Background in Local Group Policy Editor
- Option Two: Enable or Disable Acrylic Blur Effect on Sign-in Screen Background using REG file
EXAMPLE: Acrylic blur effect on the sign-in screen background image
Enable or Disable Acrylic Blur Effect on Sign-in Screen Background in Local Group Policy Editor
The Local Group Policy Editor is only available in the Windows 11 Pro, Enterprise, and Education editions.
All editions can use Option Two.
1 Open the Local Group Policy Editor (gpedit.msc).
2 Navigate to the policy location below in the left pane of the Local Group Policy Editor. (see screenshot below)
Computer Configuration > Administrative Templates > System > Logon
3 In the right pane of Logon in the Local Group Policy Editor, double click/tap on the Show clear logon background policy to edit it. (see screenshot above)
4 Do step 5 (enable) or step 6 (disable) below for what you would like to do.
5 To Enable Acrylic Blur Effect on Sign-in Screen Background
This is the default setting.
A) Select (dot) Not Configured, click/tap on OK, and go to step 7 below. (see screenshot below)
6 To Disable Acrylic Blur Effect on Sign-in Screen Background
A) Select (dot) Enabled, click/tap on OK, and go to step 7 below. (see screenshot below)
7 You can now close the Local Group Policy Editor if you like.
1 Do step 2 (enable) or step 3 (disable) below for what you would like to do.
2 To Enable Acrylic Blur Effect on Sign-in Screen Background
This is the default setting.
A) Click/tap on the Download button below to download the file below, and go to step 4 below.
Enable_acrylic_blur_effect_on_Sign-in_sceen_background.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\System]
"DisableAcrylicBackgroundOnLogon"=-3 To Disable Acrylic Blur Effect on Sign-in Screen Background
A) Click/tap on the Download button below to download the file below, and go to step 4 below.
Disable_acrylic_blur_effect_on_Sign-in_sceen_background_for_all_users.reg
Download
(Contents of REG file for reference)
Code:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\System]
"DisableAcrylicBackgroundOnLogon"=dword:000000014 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 could now delete the downloaded .reg file if you like.
That's it,
Shawn Brink
Last edited:
