Language resource has potential to break host

[janis-veinbergs]

I applied the following config and broke the host:

        Language LatvianCulture 
        {
            IsSingleInstance = "Yes" 
            AddInputLanguages = @("1062:00001062") 
            SystemLocale = "en-US"
            UserLocale = "lv-LV"
            CopySystem = $true 
            CopyNewUser = $true
        }

I suspect input language may not be correct or what. I couldn't find any documentation on what is "Long LCID" format as you say in readme that it has to be used.

Anyways, the "broke" manifisted in the following way:

• When logging in with domain user, my session gets terminated.
• Same with local admin account
• Azure DevOps agent manifested server as offline
• It was an IIS server. The weba availability was intermittent, up-down-up-down

Rolled back with this config:

        Language LatvianCulture 
        {
            IsSingleInstance = "Yes" 
            AddInputLanguages = @("1062:00001062")
            RemoveInputLanguages = @("0809:00000809")
            SystemLocale = "en-US"
            UserLocale = "en-US"
            CopySystem = $true 
            CopyNewUser = $true
        }

[janis-veinbergs]

Oh wow, I did a rollback now and I realized that i left AddInputLanguages the same as before. I did meant to put that in RemoveInputLanguages thinking that was the culprit. However UserLocale may have been the culprit, dunno.

It is Windows Server 2019 Std 1809 build 17763.3046

I noticed that I cannot set regional format to particular language unless such Language is added to system (without language pack is sufficient).

Anyways, I'm now happy that this could be rolled back and did the configuration manually.