You can use the System Configuration (msconfig) application to change boot options of Windows. In the Boot tab, check the "Safe Mode" box under the Boot Options section.
Answer:
Special variables that hold copies of function arguments are called parameters.
The first example is an IPv4 address. Because IPv4 is only 32 bits long there are only about 4 billion addresses available. To expand the address space IPv6 came into existence and your second example is an IPv6 address.
Because speed test is measuring your real-time network connection, Tests taken within a few minutes of each other might vary a little based on network congestion and available bandwidth.
