With the general widespread deployment of the Microsoft Windows 10 May 2019 Update, you may have noticed one particular change in your PC’s behaviour more than the others – this update blurs the background image on the standard login screen.
This change may not appeal to all users, but there are three ways to disable this effect.
1. How to disable the blur effect using the Personalization Settings
The blur effect created by the Windows 10 May 2019 Update is, in reality, a transparency effect and can easily be turned off through the Personalization Settings. Click or tap the Start Menu button in the lower left-hand corner of the Windows 10 desktop and select the Settings icon. Choose Personalization from the list of settings and select the Colors item found in the left-hand navigation menu.
Scroll down the page until you see Transparency effects. If you turn off ‘transparency effects’ the next time you reboot your PC and log in, the blur effect will be gone. The downside with this option is that all the other transparency effects common to the Windows 10 Operating System will disappear as well. This may not be the result you were looking for. However, you do have two more alternatives.
2. How to disable the blur effect with an edit of the Registry File
If you need to amend the Windows Registry always make sure that you back up your Registry settings before proceeding and create a valid Restore Point before you proceed.
If you would like to disable the blur effect, but only for the Windows 10 login screen, you can do this by editing the Registry File. Type “regedit” into the desktop search box and select the registry editor from the results. In the editor, navigate to this key:
As you will see there are no values in the System folder, so you will have to create one.
Right-click the System folder and select New | DWORD (32-bit) Value and give it the name DisableAcrylicBackgroundOnLogon. Double-click the new key and change its value to 1, and click OK.
This change will disable the blur effect from the Windows 10 login page but will maintain all the other transparency effects.
3. How to disable the blur effect with Group Policy settings
If you have Microsoft Windows 10 Professional, you can disable the blur effect with the Local Group Policy Editor and avoid the hassle and danger of editing the Registry File.
Type “group policy” into the Windows 10 desktop search box and select the editor from the list of results. In the editor, navigate to this folder:
Computer Configuration\Administrative Templates\System\Logon
In the right-hand list of settings, find the ‘Show clear logon background item‘.
Double-click the ‘Show clear logon background’ item to open the group policy settings screen. Change the setting to Enabled, click OK, and you will have successfully disabled the blur effect from the Windows 10 login page.
If you ever want to reenable the blur effect, navigate to the same group policy setting, and change it to Disabled.