KB4462923 install failed in "Windows Server 2008 R2 Standard" operation system

Copper Contributor

Dear Microsoft Server Support Team,


KB4462923install failed in "Windows Server 2008 R2 Standard" operation system, open event viewer (image 01), find error message: Installation Failure: Windows failed to install the following update with error 0x80070020: 2018-10 Security Monthly Quality Rollup for Windows Server 2008 R2 for x64-based Systems (KB4462923).  [Event ID: 20]


1. Why KB4462923 install failed ?  

2. How to fix this issue ?   


KB4462923 install failed_01.jpg


KB4462923 install failed_02.jpg



7 Replies

My server is run windows server 2008 R2, not windows 7 or windows 8

2008 R2 == windows 7 kernel

Follow steps for windows 7



Dear MS support team


I double-click the WindowsUpdate.diagcab file to run the troubleshooter. After troubleshooter completed then show below

Error : Windows Update error 0x800F081F (2008-11-01-T-01_11_12A) not fixed


Why show above error message ? 

How to fix KB4462923 installation ?



Vincent Kan


0x800F081F = The source files could not be found. May have to check \dism.log, \windowsupdate.log, \cbs.log files for more details. There are more steps in document to try.



Dear  MS support team


I attached "windowsupdate.log". Please help check and then provide solution. Thank you very much. 




Vincent Kan