Microsoft seems to add new bugs more than features to new Windows Server releases. If you are having a static picture after logon in Windows Server 2025, this GPO might help you. We do not really know why it happens, but this was a solution that worked for me.

Computer Configuration > Administrative Templates > Windows Components/Remote Desktop Services/Remote Desktop Session Host/Connections > Select network detection on the server > Use both Connect Time Detect and Continuous Network Detect

Some have suggested to set this configuration to “Turn off” but that did not help me out.

References:

https://www.reddit.com/r/sysadmin/comments/1irt8x3/rdp_issues_after_upgrading_to_server_2025/?rdt=55016

These 3 registry keys will help you block the rollout of Outlook NEW which is like a lot of Microsoft products a half baked solution that is being pushed by force to push something new.

This key hides the “Try new Outlook” toggle in the top right:

HKEY_CURRENT_USER
Software\Microsoft\Office\16.0\Outlook\Options\General
name HideNewOutlookToggle
type REG_DWORD
data 0x1 (1)

These key disables migration to new Outlook:

HKEY_CURRENT_USER
Software\Microsoft\Office\16.0\Outlook\Options\General
name DoNewOutlookAutoMigration
type REG_DWORD
data 0x0 (0)

HKEY_CURRENT_USER
Software\Policies\Microsoft\office\16.0\outlook\preferences
name NewOutlookMigrationUserSetting
type REG_DWORD
data 0x0 (0)

Have you ever gotten this annoying error when trying to open old control panel settings from the new settings app? This usually occurs in a domain environment.

You can fix this by creating a Domain policy or locally through secpol.msc > Local Policies > Security Options > User Account Control: Admin Approval Mode for the Built-in Administrator account:

References:

https://martinsblog.dk/windows-server-2016-systemsettingsadminflows-exe-error/