Windows License / Key Activation Key issues
Click Start and type CMD in the Start Search menu Right Click and choose Run as administrator To remove any existing product key (in case you used a trial key), enter and run the command /upk . Clear the product key from registry by running /cpky To enter your new…
Find out which Process or PID is using a particular port
Recently a customer’s phones had stopped receiving email while their email clients on the pc’s were still working fine. Time to investigate what's going on! First some simple troubleshooting, can I get to the exchange server externally using either telnet on port 25 to the companies MX record (or external…