Запускаем PowerShell от админа.
Set-ItemProperty -Path HKCU:\Software\Microsoft\Windows\CurrentVersion\Search -Name "BingSearchEnabled" -Value 0 -Type DWord
if( -not (Test-Path -Path HKLM:\SOFTWARE\Policies\Microsoft\Windows\Explorer)){
New-Item HKLM:\SOFTWARE\Policies\Microsoft\Windows\Explorer
}
Set-ItemProperty -Path HKLM:\SOFTWARE\Policies\Microsoft\Windows\Explorer -Name "DisableSearchBoxSuggestions" -Value 1 -Type DWORD
Set-ItemProperty -Path HKCU:\Software\Microsoft\Windows\CurrentVersion\Search -Name "BingSearchEnabled" -Value 0 -Type DWord
if( -not (Test-Path -Path HKLM:\SOFTWARE\Policies\Microsoft\Windows\Explorer)){
New-Item HKLM:\SOFTWARE\Policies\Microsoft\Windows\Explorer
}
Set-ItemProperty -Path HKLM:\SOFTWARE\Policies\Microsoft\Windows\Explorer -Name "DisableSearchBoxSuggestions" -Value 1 -Type DWORD