# Driver Update Checker (Stale Driver Detector)

This utility scans your Windows system for installed drivers and identifies those that are potentially outdated based on their release date. While it cannot directly fetch updates from every vendor (which requires a massive database), it helps you pinpoint which hardware components might need attention.

**Modules Used:**
*   `wmi`: Windows Management Instrumentation wrapper to access system driver information.
*   `datetime`: To calculate the age of the drivers.

## Installation

This script is designed for **Windows**.

```bash
pip install wmi
```

## The Code

Save this as `driver_check.py`.

```python
import wmi
import datetime
import sys

def get_driver_date(wmi_date_str):
    """Converts WMI datetime string (YYYYMMDDHHMMSS...) to Python datetime object."""
    if not wmi_date_str:
        return None
    try:
        # We only care about the YYYYMMDD part
        return datetime.datetime.strptime(wmi_date_str.split('.')[0], "%Y%m%d%H%M%S")
    except ValueError:
        return None

def scan_drivers(months_old=12):
    print("Initializing WMI (Windows Management Instrumentation)...")
    try:
        c = wmi.WMI()
    except Exception as e:
        print(f"Error: Could not connect to WMI. {e}")
        return

    print("Scanning installed drivers... (This may take a few seconds)")
    
    # Win32_PnPSignedDriver contains information about signed drivers
    try:
        drivers = c.Win32_PnPSignedDriver()
    except Exception as e:
        print(f"Error querying drivers: {e}")
        return

    print(f"\n{'Device Name':<45} {'Date':<12} {'Version':<15}")
    print("-" * 75)

    outdated_count = 0
    now = datetime.datetime.now()

    for driver in drivers:
        if not driver.DeviceName or not driver.DriverVersion or not driver.DriverDate:
            continue

        driver_date = get_driver_date(driver.DriverDate)
        if not driver_date:
            continue

        # Calculate age in days
        age_days = (now - driver_date).days
        
        # Check if older than threshold (approx 30 days per month)
        if age_days > (months_old * 30):
            outdated_count += 1
            date_str = driver_date.strftime("%Y-%m-%d")
            
            # Truncate long names
            name = driver.DeviceName
            if len(name) > 42:
                name = name[:42] + "..."
                
            print(f"{name:<45} {date_str:<12} {driver.DriverVersion:<15}")

    print("-" * 75)
    print(f"Scan Complete.")
    print(f"Found {outdated_count} drivers older than {months_old} months.")

if __name__ == "__main__":
    scan_drivers()
```

## Usage

```bash
python driver_check.py
```

This will list all drivers older than 1 year (default). You can modify the `months_old` parameter in the code to change the sensitivity.

[[programming/python/python]]