TCP window size refers to the maximum amount of data that can be sent from one computer to another without receiving an acknowledgment. It is an important factor in determining the performance of a network connection, as a larger window size can allow for more data to be sent before an acknowledgment is needed, which can reduce latency and improve throughput.
There are a few different ways to check the TCP window size. One way is to use the netstat command. To do this, open a command prompt and type the following command: