Utilities


How to kill a process that is using a port e.g 4200

Run this in cmd in Administrator Mode
The first command tells the process using the port 4200
netstat -ano | findstr :4200
The process using port 4200 is 15940. Lets kill that process
taskkill /PID 15940 /F
This site can't provide a secure connection localhost sent an invalid response.

for chrome: chrome://net-internals/#hsts
for edge: edge://net-internals/#hsts
for brave: brave://net-internals/#hsts

Under Delete domain security policies enter localhost or your problem domain and click the delete button on screen.
Now try to load again with http instead of https
System.IO.IOException: Failed to bind to address http://localhost:53328: address already in use
Restarting "Host Network Service" to fix it:
net stop winnat
net start winnat

This can also fix this error:
Failed to register URL "http://localhost:64798" for site application "******/". 
Error description: The process cannot access the file because it is being used by another process. (0x80070020)
css pseudo selector :nth-of-type(-n+7)

![](https://static.onecompiler.com/images/posts/42cm5f97r/MicrosoftTeams-image.png)
Show/Delete a wireless profile on your system:
netsh wlan show profiles
netsh wlan delete profile name="TOTOLINK ND300 3"
netsh wlan delete profile name="*" to delete all