Sometimes, if you can't use the graphical Event Viewer (e.g. on Windows Server Core), it is handy to list the latest Event Viewer entries via Powershell:
Get-EventLog System -Newest 10 | fl
or
Get-EventLog Application -Newest 10 | fl
This is also much quicker than starting Event Viewer.
On Windows Server 2019, I wanted to switch off Windows Defender Anti-Virus realtime scanning to test something. I went to "Windows Security" and then cliecked on the "Open Windows Security" button. This brought up the following error message:
You need a new app to open this windowsdefender
After some searching, I found that you need to install the missing app yourself, it seems to be a bug in Windows Server 2019. To do this, open Powershell as Administrator and type (all in one line):
Add-AppxPackage
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After installing Windows Server 2019 Standard, I tried to activate it with a MAK key from the Microsoft Volume Licensing Portal. I clicked on "Change product key" and entered the key from the Microsoft Portal. I got the following error message:
The product key you entered didn't work. Check the product key and try again, or enter a different one. (0x80070490)
Searching on Google, this error number mostly refers to Windows Update or Windows Store errors, but not to licensing issues.
I finally
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My experience with servers, networks and gadgets.