Windows includes a tool called System files checker to scan all system files and find problems. If the system files are lost or corrupted, this tool will automatically fix them. To use the System files checker, open the Command Prompt command window and type sfc / scannow.
Telnet Client is not installed by default so you will have to install it from within Control Panel. After installation, you can use the Telnet command to connect to the Telnet Server without installing any third-party software. While we should avoid using Telnet, if you are connecting directly to a device and it requires you to use Telnet to set up something, you still have to do it normally.
The Cipher command is mainly used for encryption management, but it also has another option that allows you to permanently delete the file and ensure it cannot be recovered. This command is very effective in cleaning up a drive without installing any other tools.
To use the Cipher command, you only need to specify a specific drive or directory such as: cipher / w: c: or cipher / w: c: .
The Netstat command is particularly useful, it will display all network statistics when used with different options. One of the most interesting variants of Netstat is Netstat –an, which displays a list of all open network connections on the computer along with the ports in use and the connected IP address.