After installing Windows:

File Explorer

Click ... in the command bar and click Options.

• View > Advanced settings > Files and Folders > Show sync provider notifications - Off

Notepad

• Spelling > Autocorrect - Off
• AI Features > Copilot - Off

Settings

• Advanced Windows Update options
  • Receive updates for other Microsoft products - On
• Choose which companions appear on Start - Off
• Get tips, tricks, and suggestions as you use Windows - Off
• Show account related notifications in Start - Off
• Show suggestions in the recommended section - Off
• Show Windows welcome notifications - Off
• Sticky keys - Off
• Suggest ways I can set up my device to get the most out of Windows - Off
• Turn off suggested content in the Settings app - Off

Uninstall

• Copilot

Windows Security

• Notifications > Virus & threat protection notifications > Recent activity and scan results - Off