# Usage:
#   Open PowerShell as Administrator
#     win+x
#     alt+a
#     alt+y
#   Run:
#     In powershell Terminal:
#       iwr -UseBasicParsing -Uri "https://git.thecoven.info/PrincessPi/general-scripts-and-system-ssssssetup/raw/branch/main/Windows-Scripts/windows-repair.ps1?nocache=$(Get-Random)" -OutFile "$env:TEMP\windows-repair-temp.ps1"; &"$env:TEMP\windows-repair-temp.ps1"

# check if hasadmin rights, if notm run script in new terminal, clopsing old
## if not, carry on
if (-not ([Security.Principal.WindowsIdentity]::GetCurrent().Groups -contains 'S-1-5-32-544')) {
    # launch tghis script int new window after promopting for admin
    Start-Process -FilePath 'powershell' -Verb RunAs -ArgumentList "-ExecutionPolicy Bypass -File $PSCommandPath"

    # CLOSE previous terminal
    exit 0
} else {
    Write-Host "`nFIXING WINDOWS FULL STYLE`n"

    Write-Host "ABORTING ANY SCHEDULED SHUTDOWN"
    shutdown /a  | Out-Null # cmd abort scheduled shutdowns

    Write-Host "Clearing DNS"
    ipconfig /flushsdns  | Out-Null

    Write-Host "Clearing ARP Cache"
    Remove-NetNeighbor -Confirm:$false | Out-Null

    Write-Host "Renewing DHCP"
    ipconfig /releasen  | Out-Null
    ipconfig /renew  | Out-Null

    Write-Host "LAUNCHING WINDOWS MALICIOUS SOFTWARE REMOVAL TOOL (MRT) FOLLOW DIRECTIONS FOR FULL SCAN"
    # mrt # builtin malware removal tools
    Start-Process -FilePath "MRT.exe" -Verb RunAs -Wait # pause until mrt is done

    Write-Host "RUNNING DISM ONLINE IMAGE CLEANUP"
    Start-Process -FilePath "DISM.exe" -Verb RunAs -ArgumentList "/Online /Cleanup-Image /RestoreHealth" -Wait # powershell checks image and replaces bad filesm waits to fimish

    Write-Host "LAUNCHING SYSTEM FILE CHECKER (SFC)"
    Start-Process "SFC.exe" -Verb RunAs -ArgumentList "/scannow" -Wait # cmd system file checker, retreives and replaces bad system files and waits fir it to finish

    Write-Host "SCHEDULING OFFLINE CHECK DISK AND REPAIR OF C: (CHKDSK)"
    Start-Process "cmd.exe" -Verb RunAs -ArgumentList "-c 'echo y | chkdsk /f /r C:'" # cmd checks C drive after reboot to waste time and fix errors (noninteractive)

    Write-Host "SCHEDULING WINDOWS DEFENDER OFFLINE SCAN MAY REBOOT UNEXPECTEDL"
    Start-MpWDOScan # powershell starts Windows Defender Offline Scan after reboot

    Write-Host "`nREBOOTING IN 5 MINUTES MAX PROVBABLY SOONER`n"
    shutdown /r /t 300
}