Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender]
"DisableAntiSpyware"=dword:00000001
"DisableRoutinelyTakingAction"=dword:00000001
Registry (.reg file) for enabling Defender:
Windows Registry Editor Version 5.00
[HKEY_LOCAL_MACHINE\SOFTWARE\Policies\Microsoft\Windows Defender]
"DisableAntiSpyware"=dword:00000000
"DisableRoutinelyTakingAction"=dword:00000000
Comments
Turn off splash and startup-sound for Opera
Change setting as shown in image:

Always show bookmarks bar in Chrome
Go to chrome://settings/appearance
and switch the setting "Bookmark bar"
Search words: ribbon bookmarks links
Tips for Edge
Edge Favorites are stored in the file "Bookmarks" on the path "%localappdata%\Microsoft\Edge\User Data\Default".
Quick access to Favorites and the button to export favorites, enter this url: edge://favorites
Change setting to always show "favorites bar": edge://settings/appearance
Set default profile for opening external links: edge://settings/profiles/multiProfileSettings
"GoFullPage"-extension (capture Teams Chats etc)
https://microsoftedge.microsoft.com/addons/detail/gofullpage-full-page-sc/hfaciehifhdcgoolaejkoncjciicbemc?hl=en-US
Disable Windows Defender (avoid conflicts with VPN or other)
Registry (.reg file) for disabling Defender:
Registry (.reg file) for enabling Defender:
Tips for Firefox
Save complete web page as single HTML-file (useful for saving Teams-chats):
https://addons.mozilla.org/en-US/firefox/addon/save-page-we/?utm_source=addons.mozilla.org