Remove One Drive Integration

#   Description:
# This script will remove and disable OneDrive integration.

#Import-Module -DisableNameChecking .\force-mkdir.psm1
function force-mkdir($path) {
    if (!(Test-Path $path)) {
        #Write-Host "-- Creating full path to: " $path -ForegroundColor White -BackgroundColor DarkGreen
        New-Item -ItemType Directory -Force -Path $path
    }
}
#Import-Module -DisableNameChecking .\take-own.psm1
function Takeown-File($path) {
    takeown.exe /A /F $path
    $acl = Get-Acl $path

    # get administraor group
    $admins = New-Object System.Security.Principal.SecurityIdentifier("S-1-5-32-544")
    $admins = $admins.Translate([System.Security.Principal.NTAccount])

    # add NT Authority\SYSTEM
    $rule = New-Object System.Security.AccessControl.FileSystemAccessRule($admins, "FullControl", "None", "None", "Allow")
    $acl.AddAccessRule($rule)

    Set-Acl -Path $path -AclObject $acl
}

function Takeown-Folder($path) {
    Takeown-File $path
    foreach ($item in Get-ChildItem $path) {
        if (Test-Path $item -PathType Container) {
            Takeown-Folder $item.FullName
        } else {
            Takeown-File $item.FullName
        }
    }
}

echo "Kill OneDrive process"
taskkill.exe /F /IM "OneDrive.exe"
taskkill.exe /F /IM "explorer.exe"

echo "Remove OneDrive"
if (Test-Path "$env:systemroot\System32\OneDriveSetup.exe") {
    & "$env:systemroot\System32\OneDriveSetup.exe" /uninstall
}
if (Test-Path "$env:systemroot\SysWOW64\OneDriveSetup.exe") {
    & "$env:systemroot\SysWOW64\OneDriveSetup.exe" /uninstall
}

echo "Removing OneDrive leftovers"
rm -Recurse -Force -ErrorAction SilentlyContinue "$env:localappdata\Microsoft\OneDrive"
rm -Recurse -Force -ErrorAction SilentlyContinue "$env:programdata\Microsoft OneDrive"
rm -Recurse -Force -ErrorAction SilentlyContinue "C:\OneDriveTemp"

echo "Disable OneDrive via Group Policies"
force-mkdir "HKLM:\SOFTWARE\Wow6432Node\Policies\Microsoft\Windows\OneDrive"
sp "HKLM:\SOFTWARE\Wow6432Node\Policies\Microsoft\Windows\OneDrive" "DisableFileSyncNGSC" 1

echo "Remove Onedrive from explorer sidebar"
New-PSDrive -PSProvider "Registry" -Root "HKEY_CLASSES_ROOT" -Name "HKCR"
mkdir -Force "HKCR:\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}"
sp "HKCR:\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}" "System.IsPinnedToNameSpaceTree" 0
mkdir -Force "HKCR:\Wow6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}"
sp "HKCR:\Wow6432Node\CLSID\{018D5C66-4533-4307-9B53-224DE2ED1FE6}" "System.IsPinnedToNameSpaceTree" 0
Remove-PSDrive "HKCR"

# Thank you Matthew Israelsson
echo "Removing run hook for new users"
reg load "hku\Default" "C:\Users\Default\NTUSER.DAT"
reg delete "HKEY_USERS\Default\SOFTWARE\Microsoft\Windows\CurrentVersion\Run" /v "OneDriveSetup" /f
reg unload "hku\Default"

echo "Removing startmenu entry"
rm -Force -ErrorAction SilentlyContinue "$env:userprofile\AppData\Roaming\Microsoft\Windows\Start Menu\Programs\OneDrive.lnk"

echo "Restarting explorer"
start "explorer.exe"

echo "Waiting for explorer to complete loading"
sleep 10

echo "Removing additional OneDrive leftovers"
foreach ($item in (ls "$env:WinDir\WinSxS\*onedrive*")) {
    Takeown-Folder $item.FullName
    rm -Recurse -Force $item.FullName
}