Outlook Google Calendar sync error: cannot parse the property 'TRIGGER'

Issue

Google Calendar added to Outlook as a Read-Only iCal Internet Calendar produces below sync warnings.

Task "Internet Calendar Subscriptions" reported error (0x0004002B) : Outlook cannot parse the property 'TRIGGER', near line 308. The property is being ignored.

Windows 10 Update KB4023057 fails with error 0x80070643

Issue

Windows 10 update KB4023057 fails to install with error: 0x80070643

Updates Failed
There were problems installing some updates, but we'll try again later. If you keep seeing this and want to search the web or contact support for information, this may help:
2018-11 Update for Windows 10 Version 1803 for x64-based Systems (KB4023057) - Error 0x80070643

Cannot add shared mailbox in Outlook - Add button is greyed out

Issue

Cannot add any shared mailboxes is MS Outlook 2019 (Office 365) because Add button is greyed out (File > Account Settings > Change > More Settings > Advanced > Open these additional mailboxes)

Remote Desktop - The Local Security Authority cannot be contacted

Remote Desktop (RDP) connection to Windows 7 computer (from Windows 10 RDP client) fails with the following error:

Remote Desktop Connection
An authentication error has occurred.
The Local Security Authority cannot be contacted.

Remote computer: xx.xx.xx.xx
This could be due to an expired password.
Please update your password if it has expired.
For assistance, contact your administrator or technical support.