Custom lock screen image not working?

[Garacesh]

Bizarre one, here. If I Right click/Personalize/Themes I get this:

 

Clearly the setting is there.

Yet when I lock the computer, I get the blank/flat colour lock screen?

 

Anyone wrangled with this?

[alfatec]

Copy your default login page image to c:\Windows\web\screen

Set the default login screen image by going to GPEDIT.MSC. Go to Computer Configuration/Administrative Templates/Control Panel/Personalization. Open ‘Force a specific default lock screen image’ and click enable. Put the above path in the ‘Path to lock screen image’.

Open the ‘Prevent changing lock screen image’ and click on enable.

[Garacesh]

Computer Configuration/Administrative Templates/Control Panel/Personalization. Open ‘Force a specific default lock screen image’ and click enable. Put the above path in the ‘Path to lock screen image’.

Done that.

 

Open the ‘Prevent changing lock screen image’ and click on enable.

Also done that.

 

 

That's the bizarre thing, the policy IS set. The image in my first post shows the image (backgroundDefault.jpg) on the Personalize/Themes page and doesn't allow me to change it. Yet if I log out or Win+L, I still get solid colour.

 

Edit: Found this post saying it's to do with Windows not being activated, but just checked and my test box is.

 

Edit2: Does it have to be in the web folder? I know that's where the usual images are kept, but I wouldn't have thought so?

Edited May 5, 2016 by Garacesh

[alfatec]

It has to be in the web\screen folder. You Haven't made any registry entries to not use a login background. Check this registry entry, what is yours set to?

 

[-HKEY_LOCAL_MACHINE\Software\Policies\Microsoft\Windows\System]

"DisableLogonBackgroundImage"=dword:00000001

[3s-gtech]

I can confirm that it doesn't need to be in C:\Windows\Web, I've just got it working from a UNC share using the same policies as in 8.1. I thought it was broken, but it turns out my WMI filters for Windows 8.1 and up didn't work properly.

[Garacesh]

Check this registry entry, what is yours set to?

HKLM\....\System doesn't contain a registry key named DisableLogonBackgroundImage, only DisableLockScreenAppNotifications (which is correctly set at 00000001)

 

Creating DisableLogonBackgroundImage (32-bit DWORD 00000000) does nothing. Modifying it to 1 (00000001) also doesn't help.

 

Just to be clear, I'm on about the Lock screen (i.e. press CTRL+ALT+DEL screen) not the 'put in your username and password' screen (although, if I could replace the Windows 10 wallpaper there, that'd be cool)

[alfatec]

What I have done is disable the need for Ctrl alt delete and just have the username and password screen. I have set a background for this using Windows login background changer 1.5 by alfawaves.

[Garacesh]

I have set a background for this using Windows login background changer 1.5 by alfawaves.

Can you drop me a link?

Also, do you know what it actually changes? I'd rather implement the changes myself, as it were, rather than run a third party tool on all machines (same reason I don't want to use Classic Start)

[3s-gtech]

On further testing, I'm finding that the lock screen is changed to the GPO set one on the logon screen, but once a user logs on it goes back to one of the others. Annoying.

[Garacesh]

Serving the image from C:\...\screen\img0.jpg isn't helping either. Same effect. The Personalize menu shows that the custom lock screen is set, and doesn't allow it to be changed (as per group policy) but the lock screen doesn't get used.

 

[DJ-1701]

Out of interest, what is the size of the jpg? Wondering if it's the old 256KB issue. Just a thought.

[Garacesh]

Out of interest, what is the size of the jpg? Wondering if it's the old 256KB issue. Just a thought.

 

It's only 43.3KB

Originally I thought it might be dimension related, but making the image 1280x1024 doesn't work either.

[DJ-1701]

Strange...

 

We have ours set to C:\Windows\System32\oobe\info\backgrounds\backgroundDefault.jpg which appears to work on Windows 10.

 

I could put the path in Code tags to avoid the random space(s)...

C:\Windows\System32\oobe\info\backgrounds\backgroundDefault.jpg[/Code]

Edited May 5, 2016 by DJ-1701

[Arthur]

Can you drop me a link?

You can download the program @alfatec is talking about from here...

 

Windows 10 Login Changer

 

Also, do you know what it actually changes? I'd rather implement the changes myself, as it were, rather than run a third party tool on all machines (same reason I don't want to use Classic Start)

The tool modifies the following system file...

 

C:\Windows\SystemResources\Windows.UI.Logon\Windows.UI.Logon.pri

 

Note. Changes made to this file will be lost when you upgrade to a newer build of Windows 10. This is why I haven't bothered myself.

Edited May 5, 2016 by Arthur

[Garacesh]

C:\Windows\SystemResources\Windows.UI.Logon\Windows.UI.Logon.pri

 

Note. Changes made to this file will be lost when you upgrade to a newer build of Windows 10. This is why I haven't bothered myself.

 

Hmm.. Valid point. By Summer there should be the equivalent of SP1 released.

[Garacesh]

Figured it out!

Using Computer Configuration/Policies/Windows Settings/Security Settings/Local Policies/Security Options/ Interactive Logon/Interactive Logon: Do not require CTRL+ALT+DEL was my nemesis. I had it set to Disabled to force the three-fingered salute. Setting this to Enabled (allowing the user to press any key, or click, to get to the login page) restores the custom lock screen.