You have a server with an 8 GB system partition and it keeps filling up. The software distribution folder used by windows updates is a major source of bloat and Microsoft support has said there is nothing you can do to move this folder from the C drive.
Using the Microsoft Junction Tool found on the Systernals site create a symbolic link to another hard drive or partition. I will use the terms symbolic link and junction interchangeably in this post.
Stopping the Windows Update Service and renaming the folder
Start>Run type cmd and press enter type net stop wuauserv and press enter type rename c:\windows\SoftwareDistribution softwaredistribution.oldand press enter
Creating a symbolic link using Junction (Download)
In this example the software distribution folder will be redirected from C:\WINDOWS\SoftwareDistribution to the D:\WINDOWS\SoftwareDistribution
Creating the Junction
To create the target directory from the command prompt
To create the Junction
C:\>junction C:\WINDOWS\SoftwareDistribution “D:\WINDOWS\SoftwareDistribution”
Restart the Windows Update Service
type net start wuauserv and press enter
Once everything has been verfieid to be working normally delete the softwaredistribution.old folder.