Personalization Enable or Disable Acrylic Blur Effect on Sign-in Screen Background in Windows 11


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Sign-in_screen.jpg

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

sign-in_screen-on.jpg
sign-in_screen-off.jpg





Option One

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

sign-in_screen_acrylic_blur_effect_gpedit-1.png

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)​

sign-in_screen_acrylic_blur_effect_gpedit-2.png

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)​

sign-in_screen_acrylic_blur_effect_gpedit-3.png

7 You can now close the Local Group Policy Editor if you like.




Option Two

Enable or Disable Acrylic Blur Effect on Sign-in Screen Background using REG file


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


(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


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

[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows\System]
"DisableAcrylicBackgroundOnLogon"=dword:00000001

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 could now delete the downloaded .reg file if you like.


That's it,
Shawn Brink


 

Attachments

  • user.png
    user.png
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  • Disable_acrylic_blur_effect_on_Sign-in_sceen_background_for_all_users.reg
    702 bytes · Views: 421
  • Enable_acrylic_blur_effect_on_Sign-in_sceen_background.reg
    676 bytes · Views: 385
Last edited:
Ahhh, thanks for this.
 

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:shawn:
 

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    Windows 11 Pro for Workstations
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    2 x Samsung Odyssey G75 27"
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    Intel Wi-Fi 7 BE200 (2x2) and Bluetooth 5.4
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    Chrome and Edge
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    Windows Defender and Malwarebytes Premium
Very helpful. I've been wondering how to do this for a while.
 

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    Windows 11 Pro Beta
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    Ryzen 9 5900X
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    Patriot Viper Gaming DDR4 Extreme Performance (2 x32MB)
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    Thermaltake Smart 700W 80+ White Certified PSU
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    Rosewill ATX Mid Tower Gaming Computer Case, Gaming Case with Blue LED for Desktop
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    Corsair iCUE H60i RGB PRO XT Liquid CPU Cooler
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    Corsair K70
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    Logitech MX Master 3
    Internet Speed
    ~950Mb/s upload/ ~700Mb/s download
    Browser
    Edge (Chromium)
    Antivirus
    Norton 360
  • Operating System
    Windows 11 Pro
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    PC/Desktop
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    Home Built
    CPU
    Ryzen 7 3700X
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    MSI B550 Gaming GEN3 Gaming Motherboard
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    32MB DDR4
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    I forget, but it's old. I can't see the need to upgrade it.
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    1TB Samsung SSD 3.5"
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    Logitech
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    ~750Mb/s download / ~750Mb/s upload
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    Edge
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    Defender and Malware Bytes
Perfect! Thank you very much.
 

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    Windows 11 Pro
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    iBuyPower
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    ASUS PRIME X570-PRO Motherboard
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    64 GB (Corsair Vengeance DDR4)
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    MSI RTX 3080 Ti Gaming Trio
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    750 Watt - 80 PLUS Gold Certified
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    iBUYPOWER 240mm Addressable RGB Liquid Cooling System
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    MSI VIGOR GK30
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    400
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    Edge & Firefox
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    Windows 11 Pro
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    Self Built
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    Ryzen 3700x
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    MPG-X570-GAMING-EDGE-WIFI
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    48 GB
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    Zotac RTX 3070
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    Onboard
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    MSI 27" Curved
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    1920 x 1080
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    1 TB SanDisk NVME, 500 GB SanDisk SSD, and a 4 TB Western Digital Spinner
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    750 Watt
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    MSI Gungnir 100 (Very nice case, btw!)
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    Corsair 280mm AIO Cooler
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    Logitech
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    Logitech
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    400
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    Firefox & Edge
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    Built this for my wife two years ago.
Yes. You're so very helpful all the time. Thanks Admin.
 

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    Windows 11 PRO v.21H2 (OS BUILD 22000.282)
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    ASUSTeK Computer INC.
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    Intel Core 2 Duo E4600 @ 2.40GHZ Conroe
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    ASUSTeK Computer INC. P5GC-MX/GBL (LGA 775)
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    4GB DDR2 (667mhz)
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    ASUS EAH4670 series 512MB
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    ATI High Definition Audio Device
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    DELL E170S
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    1028x1024 75hz
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    450Watt
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    Custom
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    DeepCool Mini
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    Crown UB
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