Lockscreen issues on Windows 8.1

it still doesn't work for me. i created a new account ,deleted the previous one but still i cant change the lockscreen image. please help!!

I also tried this key without success.

I had to create a new login. BriannaMancine and d33p_th0ught provided the best answer and the only solution.

This is what the registry keys looked like before i added the new one.

I chose the same username again.

If I remember correctly the user folder got deleted. However the settings stored in your microsoft account are restored afterwards (if the synchronization of those settings has not been disabled).

Manually doing a backup of your user folder may work but I haven't done that.

I simply removed the user and created it again with the same name and microsoft account.

Edit to clarify what BriannaMancine said:

Backup your local user files but don't worry about your files connected to your microsoft account like those on Onedrive. Those will be available wherever you login with your microsoft account as long as you have an internet connection.

I wish I could mark the last 4 posts by BriannaMancine and d330_th0ught as the CORRECT ANSWER and CORRECT ALTERNATE ANSWER!!!

I shout because there's so much mis-information.

I am aware of and have tried ALL solutions that you can search for using BING and GOOGLE search engines. I have tried ALL steps listed by all of those posts. (as of 1/30/2015). (However I skipped the illegitimate ones.)

Scan for anti-virus? Yep, none found.

Licensed version of Windows? (Seriously asking?) Anyways.. yes....

Edited group policy? I don't have gpedit, however I did check into the registry affected by gpedit.

Edited "HKEY_LOCAL_MACHINE/SOFTWARE/Microsoft/Windows/CurrentVersion/Explorer/Desktop/NameSpace" ? That's new.. but yes.. I tried it.

Know how to even work with lockscreen? Of course! I have 2 computers, 1 works perfectly.

Run "sfc /scannow"? Yes.. ran it.

Edit "C:\ProgramData\Microsoft\Windows\SystemData"? Yes. I discourage others from trying because this is very destructive and didn't work anyways.

How about this site? "http://fixcomputerscreen.com/windows-8-lock-screen.php" - They make me nervous.... their file is a DOWNLOADER. IE8/9/10/11/12/... doesn't need a downloader. Neither do Firefox nor Chrome.

DISM? Tried it. Didn't work.

"HKEY_CURRENT_USER\Software\Microsoft\Windows\CurrentVersion\Lock Screen"? I admit. This is new and most interesting. I tried it more than once. No. But I see some others tried this successfully...

It definitely required deleting/recreating the account.

I backed up my filed, and I put stuff into SkyDrive. I also assigned a database administrator (because I have a database).

Then I deleted account but kept files. Not sure keeping files does anything... it merely keeps the folder of the user.

I created new account using my OneDrive email address. The username is created automatically.

I'm taking the "Restore as needed" approach so that I don't spend all my time restoring things, but only the time I need to restore what I want when I want it. It's usually a few minutes at a time.

OneDrive synchrnoized stuff was restored. -- One thing to note, the RSS Feeds linked to Desktop wallpapers are a service no longer available. They are broken.

Lockscreen now works and is synchronized.