Aurora screensaver is by default absent in Windows 7, here is a complete tutorial on how to restore Windows Aurora Screensaver with all settings in Windows 7.
Windows 7 lacks the corresponding screensaver file. So, you need to download it. Download Aurora screensaver file by clicking here (We have created the registry files for you too and included in the the rar file). You will get a rar file with the needed screensaver file. Just unzip (actually unrar!) it, right click over the Aurora screensaver file and select Install:

Screensaver settings will open:
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You can set Aurora screensaver now, but you will not able to edit Settings.
You have to edit the registry for that.
Click Start button, type œregedit (without the quotation marks) and press Enter from keyboard. Accept the security prompt to run Windows registry editor:

Windows registry editor will open. Go to :
HKEY_CURRENT_USER\Software\Microsoft\Windows\Current Version\Screensavers:
Right click on the Screensavers key, and select New > then click Key ; name it “Aurora” :

In the right pane, right click on a empty area and click on New and DWORD (32-bit) Value. Create the following DWORD values:
Amplitude Set from 500000000 to 2000000000 (Higher value number will yield a slow motion affect)
Brightness Set from 1000000000 to 1050000000 (Higher value number for brighter affect)
NumLayers Set from 1 to 15 Number of aurora layers.
Speed Set from 1000000000 to 2100000000.

Double clicking any value will enable you to edit the value.
We have created the registry files for you and included in the the rar file (link given above).
Tagged With aurora screensaver registry settings , custom windows Aurora loc:US
Nice information, many thanks to the author. It is incomprehensible to me now, but in general, the usefulness and significance is overwhelmingoverwhelming. Thanks again and good luck!