1. Is this a feature update to 1803 or some KB update? To know this -
To verify whether these are installed or not - Windows Key+I to invoke Settings > Update & Security > See which updates are getting installed. If this information is not available here > Click View installed update history to see which updates have been installed.
Make a note of KB number of this update.
2. Right click on Windows Start > Windows Powershell (Admin)
Type following (or copy and paste following) one by one and Enter
net stop wuauserv
net stop cryptSvc
net stop bits
net stop msiserver
Ren C:\Windows\SoftwareDistribution SoftwareDistribution.old
Ren C:\Windows\System32\catroot2 Catroot2.old
net start wuauserv
net start cryptSvc
net start bits
net start msiserver
3. Type following in Windows Start Search box and hit Enter %systemroot%\Logs\CBS > Rename CBS.Log to something else.
If it doesn't allow you to rename - Type services in Windows Start Search box > Click Services > Scroll down to find the Windows Modules Installer service and double-click on it > Set its startup type to Manual > Reboot your computer
Go to C:\Windows\Logs\CBS > Rename CBS.Log > Reboot your computer > Then go back into the Services App and set Windows Modules Installer Service back to Automatic Startup (Note CBS log files contain information about windows update, SFC etc)
(Source -
https://partnersupport.microsoft.com/en-us/par_...)
3. If this is a normal KB update -
You can download the updates from Microsoft Catalog and update manually. Switch off your internet before you start updating. Disable any third party antivirus which you should enable after the update. Search for relevant KB in the Catalog.
Microsoft Catalog -
https://www.catalog.update.microsoft.com/Home.aspx
4. If this is a feature update to 1803 -
Uninstall any third party Antivirus (After update is successful, you can install it again)
You can go to
https://www.microsoft.com/en-us/software-downlo...
You can download the latest Windows 10 package from this link (media creation tool) and follow the instructions there to upgrade. Use the very simple instructions given under Using this tool to upgrade this PC to Windows 10
https://www.microsoft.com/en-us/software-downlo...