Networking
View a Wi-Fi password you already saved (your PC only)
Windows can show the key for networks this device has previously joined. Replace YOUR_WIFI_NAME with the exact SSID (use quotes if it contains spaces).
netsh wlan show profiles
netsh wlan show profile name="YOUR_WIFI_NAME" key=clear
Use responsibly. Only run this on hardware you own or are authorised to administer. Do not attempt to capture other people’s credentials or break into networks—that is illegal and unethical. Windows user account passwords are not exposed in plain text via CMD; use official password reset or Microsoft account recovery instead.
Troubleshoot
Quick connectivity checks
ipconfig /all
ping 8.8.8.8
tracert fraittech.co.ke
ipconfig /flushdns
ping tests reachability; tracert shows where packets slow down; flushdns clears stale DNS on the PC after DNS changes.
Maintenance
Repair common Windows file issues (elevated)
From an Administrator command prompt:
sfc /scannow
DISM /Online /Cleanup-Image /RestoreHealth
For disk problems, schedule chkdsk carefully—it may require a reboot. Always backup first.
Power user
See what is listening on a port
netstat -ano | findstr :443
Match the PID in Task Manager or use tasklist /FI "PID eq 1234" to identify the process. Helpful when a dev server or printer utility grabs a port.