Repeated attempts to install the latest updates for Windows Server 2012 Standard x64 have failed. System simply never completes the process, no error messages at all. Have tried installing from the Microsoft Update Catalog as well with the same result. Have also tried this elevated command prompt process: Open up Command prompt as Admin net stop wuauserv net stop bits
Go to C:\Windows\SoftwareDistribution
Delete all the contents
Return to "Command Prompt"
net start wuauserv net start bits
After performing this process Windows Update seems to stall downloading at 5% and never progress any further. It is trying to download KB5001401.
Go to run box. (windows key and R)
look through the log and find the errors.