Auto Refresh Rate Switcher (Plug / Unplug)
Automatically switches your display refresh rate when you plug or unplug your laptop charger.
No ugly PowerShell or CMD windows, no manual setup -- just install once and forget about it.
Included Files
Path: C:\Program Files\QRes\
| File | Description |
|---|---|
| QRes.exe | The tool that changes display refresh rate. |
| qres.ps1 | Checks if your laptop is on AC or battery and triggers QRes. |
| qres.vbs | Runs the PowerShell script silently (no window). |
| taskschd.xml | Task Scheduler configuration file. |
Installation (One-Command Setup)
Open PowerShell as Administrator and run:
That's it.
When you plug in your charger - refresh rate jumps to 120 Hz
When you unplug - refresh rate drops to 60 Hz
How It Works
Windows logs two power events:
- Event ID 105 - Plugged in
- Event ID 104 - Unplugged
The scheduled task listens for those and silently runs qres.vbs, which launches qres.ps1.
That script checks power status and switches refresh rates using QRes.exe.
Default logic inside the script:
Start-Process "C:\Program Files\QRes\QRes.exe" -ArgumentList "/r:120" -WindowStyle Hidden
} else {
Start-Process "C:\Program Files\QRes\QRes.exe" -ArgumentList "/r:60" -WindowStyle Hidden
}
Customizing
Edit the two numbers in qres.ps1 to your preferred refresh rates.
Examples:
/r:120-/r:360/r:60-/r:144
To test manually, run:
If your display flickers, it worked.
Uninstall
To remove everything:
Remove-Item "C:\Program Files\QRes" -Recurse -Force
- Works on Windows 10/11.
- Needs Administrator privileges for install.
- Task runs fully silent once set up.
Plug in = 120 Hz Unplug = 60 Hz
Simple. Efficient. Quiet.