#Requires -Version 5.1
<#
    JbTecWiz Support Centre -- generated fix script

    Fault : OneDrive stuck on "Processing changes" or not syncing
    Fix   : Reset the client without losing local files
    Source: https://jbtecwiz.com/support/win-app-onedrive-stuck

    Run as     : PowerShell as the affected user
    Expect     : 30 minutes plus resync
    Risk       : medium
    Reversible : yes

    WHEN THIS IS THE RIGHT FIX
    It cannot connect, cannot sign in, or is stuck after the file checks
    above.

    HOW TO UNDO IT
    Nothing local is deleted by the reset itself. Files copied out
    beforehand can be copied back.

    This script walks the fix one step at a time and asks before each
    one. Steps with no command are things you do yourself -- it prints
    those and waits. Run with -DryRun to print without executing.

    --------------------------------------------------------------------
    NO WARRANTY - USE AT YOUR OWN RISK

    This script is provided by JbTecWiz as-is and with no warranty of any
    kind, express or implied. You run it entirely at your own risk.

    JbTecWiz accepts no liability for any loss or damage arising from its
    use, including but not limited to data loss, downtime, or configuration
    changes that turn out to be wrong for your system.

    You are responsible for reading this script before running it, for
    satisfying yourself that it suits the machine in front of you, and for
    having a working backup first. Some steps cannot be undone.
    --------------------------------------------------------------------
#>

[CmdletBinding()]
param(
    # Print every step and command without running anything.
    [switch]$DryRun,
    # Do not ask before each step. Read the script first if you use this.
    [switch]$Unattended
)

$ErrorActionPreference = 'Stop'
$script:Failed = 0

function Write-Rule { param([string]$Text)
    Write-Host ''
    Write-Host ('-' * 70) -ForegroundColor DarkGray
    if ($Text) { Write-Host $Text -ForegroundColor Cyan }
}

function Show-Prose { param([string]$Text, [string]$Colour = "Gray")
    if (-not $Text) { return }
    $words = $Text -split "\s+"; $line = "  "
    foreach ($w in $words) {
        if (($line.Length + $w.Length) -gt 74) { Write-Host $line -ForegroundColor $Colour; $line = "  " }
        $line += "$w "
    }
    if ($line.Trim()) { Write-Host $line -ForegroundColor $Colour }
}

function Invoke-Step {
    param(
        [int]$Number, [string]$Do, [string]$Why,
        [scriptblock]$Command, [switch]$Manual, [string]$Shell = "powershell"
    )
    Write-Rule "  Step $Number of 5"
    Show-Prose $Do "White"
    if ($Why) { Write-Host ""; Show-Prose $Why "DarkGray" }

    if ($Manual) {
        Write-Host ''
        Write-Host '  -> Do this yourself, then press Enter to carry on.' -ForegroundColor Yellow
        if (-not $Unattended -and -not $DryRun) { [void](Read-Host) }
        return
    }

    Write-Host ''
    foreach ($l in ($Command.ToString().Trim() -split "`n")) {
        Write-Host ("    " + $l.Trim()) -ForegroundColor Green
    }
    Write-Host ''

    if ($DryRun) { Write-Host "  (dry run -- not executed)" -ForegroundColor DarkGray; return }
    if (-not $Unattended) {
        $a = Read-Host "  Run this step? [Y]es / [S]kip / [Q]uit"
        if ($a -match "^[Qq]") { Write-Host "  Stopped at your request."; exit 0 }
        if ($a -match "^[Ss]") { Write-Host "  Skipped." -ForegroundColor DarkGray; return }
    }
    try { & $Command }
    catch {
        $script:Failed++
        Write-Host ("  Step $Number failed: " + $_.Exception.Message) -ForegroundColor Red
        Show-Prose "The rest of the fix may depend on this. Read the write-up before carrying on." "Red"
        if (-not $Unattended) {
            $c = Read-Host "  Carry on anyway? [y/N]"
            if ($c -notmatch "^[Yy]") { exit 1 }
        }
    }
}

Write-Rule
Write-Host '  OneDrive stuck on "Processing changes" or not syncing' -ForegroundColor White
Write-Host '  Reset the client without losing local files' -ForegroundColor Cyan
Write-Host ''
Write-Host '  Risk: medium   Reversible   30 minutes plus resync'
Write-Host ''
Show-Prose 'No warranty. Use at your own risk - JbTecWiz accepts no liability. Read it before you run it, and have a backup.' 'DarkYellow'
Write-Rule

if (-not $Unattended -and -not $DryRun) {
    $go = Read-Host '  Ready? [y/N]'
    if ($go -notmatch "^[Yy]") { Write-Host "  Nothing was changed."; exit 0 }
}

Invoke-Step -Number 1 -Do 'Understand what a reset does before running it: it clears the local sync database and re-downloads the file list. Files marked "Always keep on this device" are re-verified; files that are online-only are re-linked. Local-only files that were never uploaded are the ones at risk, so copy anything unsynced out of the folder first.' -Manual

Invoke-Step -Number 2 -Do 'Run the reset.' -Command {
    cmd.exe /c '%localappdata%\Microsoft\OneDrive\onedrive.exe /reset'
}

Invoke-Step -Number 3 -Do 'If nothing happens after a minute, start it manually -- the reset does not always relaunch the client.' -Command {
    Start-Process "$env:LOCALAPPDATA\Microsoft\OneDrive\onedrive.exe"
}

Invoke-Step -Number 4 -Do 'Sign in again and let it reconcile. On a large library this takes hours, and the machine should be left on and on mains.' -Why 'Most reports that a reset lost files are actually a resync that was interrupted partway. It looks identical and it is not the same thing.' -Manual

Invoke-Step -Number 5 -Do 'If the client is old, install the current version from Microsoft before concluding the reset failed.' -Manual

Write-Rule "  Confirm it worked"
Show-Prose 'The status settles to Up to date and the file count matches the web view.' 'White'
Write-Host ''
if (-not $DryRun) {
    Get-Process OneDrive | Format-List Name,Path,StartTime
}

Write-Rule
if ($script:Failed -gt 0) {
    Write-Host ("  Finished with " + $script:Failed + " failed step(s).") -ForegroundColor Yellow
    Show-Prose 'Read the full write-up at https://jbtecwiz.com/support/win-app-onedrive-stuck' 'Yellow'
} else {
    Write-Host '  Finished.' -ForegroundColor Green
}
Write-Host ''
Show-Prose 'To undo: Nothing local is deleted by the reset itself. Files copied out beforehand can be copied back.' 'DarkGray'
Write-Rule